Why the 13" MacBook Pro didn't get a Core i5 upgrade
arstechnica.com
arstechnica.com
Meanwhile, rxvt-unicode still doesn't require a very powerful graphics card.
So I sprung for the 15" with a high-res screen. That is definitely an upgrade...
Isn't that basically the case already? To go from the base 13" MBP to the base Air, you're getting a Core 2 that's .54GHz slower, a worse graphics card, half the battery life, only 2 GB RAM, no optical drive, and only 1 USB port, all for $300 more. All you're getting in return for all of that is the fact that it's super-thin and super-light.
Look at it this way: a 13" Macbook Pro weighs a whopping 50% more and all you get is a CPU that's a little faster, bigger harddrive and an optical drive, which many people don't need. I don't think I've used the optical drive in my MBP 13" for anything other than the OS X system disk once or twice.
You can make the iMac or the heavy MacBooks more powerful, but they will still won't be as portable as the Air.
And twice the battery life. That's huge.