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davidcann

1,118 karma · joined April 17, 2008

david@davidcann.com

Buildermark https://buildermark.dev

Multitui https://multitui.com

Universymbols https://universymbols.com

Gelatinous Development Studio https://geldev.com

Previously, Co-founder of Double Robotics (YC S12) https://www.doublerobotics.com

submissionscomments
davidcann··on This is the mail system
That sounds like someone at Yahoo is reading my email.
davidcann··on Show HN: Our Hackable E-Paper Watch for iPhone and Android
Scroll down to UIBackgroundModes:

http://developer.apple.com/library/ios/#documentation/genera...

davidcann··on Show HN: Our Hackable E-Paper Watch for iPhone and Android
You do if you want to transfer custom data. Some controllers get away with using the keyboard Bluetooth profile. You apply to MFi here: https://developer.apple.com/programs/mfi/

But pretty much everything else is under NDA, unfortunately.

davidcann··on Show HN: Meteor, a realtime JavaScript framework
Is there a built-in way to execute different code on the server, such as proprietary business logic, custom authentication, non-cross-domain APIs, etc?
davidcann··on Fundraising: From $1,000 To $1,000,000
$1m is more in the range of angel investments than VCs. I think angel investors would be very happy with a $20m/year profit company after only $1m investment.
davidcann··on The GitHub Styleguide
I would agree with that if there were a defined, consistent logic, but I've never seen that done well across multiple developers. After switching to alphabetized rules, my CSS feels much more organized and I'd say is much easier to scan and refactor.
davidcann··on The GitHub Styleguide
I'd recommend adding:

* Alphabetize properties within each CSS rule

To here: https://github.com/styleguide/css

davidcann··on Ex Apple TV Engineer: New Apple TV UI is actually one Jobs threw away years ago
The Apple TV seems to be moving toward an app based approach, so perhaps this UI simply makes more sense in the current ecosystem.
davidcann··on Show HN: I wrote a guidebook on everything I know about applying to Y Combinator
Am I reading this wrong or is the math on page 3 off by an order of magnitude?

If this is true: "every partner reads every app over a period of about 10 days" and there are "2000+ applications", then each parter would be reading 200 applications per day, not 20. That means you have 2 minutes to catch their attention, not 20 minutes. This only further supports the message of that page - impress fast.

davidcann··on HTML5 Developers Dominate at the Facebook Hackathons
"The primary reason for a native app is to provide functionality with poor or no signal."

Huh? The primary reasons for a native app are to create a superior user experience and have access to native hardware features.

You can create an offline mobile web app pretty easily (on iOS, at least, not sure about android).

davidcann··on Union Sq ventures to lead $10m investment in Dwolla
Perhaps they're betting on PayPal's terrible reputation.
davidcann··on How U.S. Lost Out on iPhone Work
If the US imposes higher import taxes, certainly other countries would respond by raising barriers for US exports, thus not solving the issue at hand.
davidcann··on British teenage designer of Summly app hits jackpot
I don't think a $250,000 investment is considered a "jackpot".
davidcann··on The amazing iOS 5 API and iPhone 4S hardware nobody talks about
There's already a set of standard protocols for LE (such as heart rate) that are managed by the Bluetooth standards group. Their intention is to grow that list based on feedback from developers.
davidcann··on The amazing iOS 5 API and iPhone 4S hardware nobody talks about
Core Bluetooth, which is Bluetooth 4.0-only, doesn't require MFi approval from Apple, meaning it does remove the biggest obstacle.
davidcann··on Microsoft Announces "Kinect Accelerator" to Turn Hacks into Businesses
I spoke with PrimeSense a few months ago and they won't sell the sensor chips unless you can guarantee to move hundreds of thousands or millions of units.
davidcann··on Add iPhone Settings Shortcuts To Your Home Screen
Settings links were unofficially added in iOS 5.
davidcann··on TechCrunch messes up the math on sexism
I would think that math aptitude has very little to do with developing great products and companies, so I don't understand this argument. It doesn't even have much to do with many types of programming.
davidcann··on Tim O'Reilly: I am really starting to hate Mac OS X.
This widget works great for show/hide hidden files:

http://www.apple.com/downloads/dashboard/developer/hiddenfil...

davidcann··on Mac App Store apps must implement sandboxing as of March 2012
Did you even look? It's publicly available:

https://developer.apple.com/library/mac/#documentation/Secur...

davidcann··on Github's new look: The Code Tab
Perhaps something like this: http://davidcann.com/github-edited.png
davidcann··on LED, CFL and Incandescent bulbs side by side
Isn't the issue really more about the quality of the light, which can't be captured in photos? CFLs give me headaches after a while, just like big florescent office-style lights.
davidcann··on Serial cable for iPod approved by Apple
How about an iPad robot running on an Arduino (we made it):

http://www.youtube.com/watch?v=2BXM9PYaXY0

davidcann··on Google made my son cry
That's not true. There is a terms of service page upon the first login to gmail for any google apps for your domain account. Each user must accept.
davidcann··on Harjeet: I'm a partner at Y Combinator. Ask me anything.
The same thing happened to me and I'm still not sure if my question was entered or not. I can't find anywhere that lists the questions I've asked.
davidcann··on Show HN: We're taking on AnyBots
Hm, yeah, we may be underestimating the work it'll take to productize it.

I think we have a good shot, though, because our hardware engineers are experienced in shipping very high tech medical devices (and fighting robots!). Compared to complying with FDA regulations, a telepresence robot is relatively simple.

davidcann··on Show HN: We're taking on AnyBots
Thanks. I think it'll take some time for people to get used to the robots, but Cisco makes billions on video conferencing in business environment.
davidcann··on Show HN: We're taking on AnyBots
Clickable: http://youtube.com/watch?v=2BXM9PYaXY0
davidcann··on [dead]
Oh, thanks for the heads up. I used a mobile app to post it... I guess there's a bug.
davidcann··on Show HN: iosframeworks.com - A curated catalog of iOS frameworks and classes
This looks great. How about an RSS feed?
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