I can't see much innovation happening in the OS space for a few years until we get widespread adoption of memristors, perhaps in 2020 when HP comes out with The Machine.
I can't see much innovation happening in the OS space for a few years until we get widespread adoption of memristors, perhaps in 2020 when HP comes out with The Machine.
On the software side, I powered it on a year or so ago. Felt pretty different from recent OS X. I didn't remember it being as different as it was. (If you had said little substantive change since 10.6 I may have agreed more.)
Yeh that's great if all you are doing is mild web browsing and sending emails. Last year I ditched my late 2008 MBP for a 2014 MBP (both 15") and the difference is astounding. I can play CSGO at 150fps rather than 25. Furthermore it doesn't overheat and shut down while playing CSGO. For work it is also a massive improvement when I run MATLAB scripts that involve huge matrix multiplications, inversions, SVDs etc.
My point was that the thing in your pocket runs circles around the 10.4 machine, and the high-end desktop machine runs circles around that. But I agree with sjtrny's comment that you might not notice it if you don't try it with the right workload. (Although, with the way web browsers burn cycles and RAM these days ...)
I also have a PowerPC machine on 10.5 that I power up every now and then, and every time I am surprised how similar it is to 10.9. Maybe that's because my Dock hasn't changed a lot since 10.4, and I avoid the cloud and notifications like the plague.
* HiDPI support & Retina scaled resolutions * AirPlay video / desktops * Photos / iCloud Photo Library * Notifications * Handoff / Continuity * iMessage / FaceTime (bundled in 10.7) * Voice & SMS relay * Find my Mac / remote lock & erase via iCloud * Automatic cellular data tethering * MailDrop for sending large Mail attachments * AutoSave (app state save/restoration) * 32->64 / ALSR / kext signing / GateKeeper * Rotating TimeMachine backups * EFI OS Recovery
I like all of those features (though AirPlay still is a struggle with HD, though to be expected; and handoff for voice is still very buggy). And others are genuine innovations or things that Apple has polished. But to point to, for an egregious example, "Look, Notifications, how innovative that is" is also disingenuous.
Look for "Scalable User Interface" here: http://arstechnica.com/apple/2005/04/macosx-10-4/20/
(Not entirely serious, I think HiDPI this is the best new thing to happen since 10.5, and I can't wait until I can actually buy HiDPI displays.)
http://flashlight.nateparrott.com
It's a system for Spotlight plugins on Yosemite. It works similar to Alfred, LaunchBar or Quicksilver. It's open source and fairly simple to write your own plugins for the system (in Python or Javascript).
Indeed, Notifications has an annoying habit of locking up an otherewise solid 10.8.5 so I can't command+tab between apps. It always returns after 45-90 seconds, and I can kill it by bringing up spotlight and launching activity monitor - but that's the only impact that the notification tray has made on me. (Though, notifications themselves, akin to what Growl used to do, are kind of handy - except for the annoying one telling me I have to update my computer that I can't stop from coming back - particularly harsh when you are doing a presentation on a projector)
>the annoying one telling me I have to update my computer that I can't stop from coming back
That one caused me to disable OS X notifications altogether. If Apple wants to silently upgrade the OS without notifying me, I would be OK with that (though I'd appreciate an email) but interrupting me without giving me any way less drastic than rebooting to turn off the stream of interruptions is just not OK with me.
(Yes, I realize that I'm more intolerant of interruptions than most people.)
I command-tab as well, but I find it useful to have an overview of everything going on, and jump straight to a window (without command-tabbing, then command-tilde'ing depending on the application)