[spaghetti]

I enjoy the high pixel density displays on small devices like iPhone 4. However the iPad 3's display doesn't really interest me. I just don't hold the device that close to my eyes.

Snappy, responsive UIs are the most important thing to me. I'll trade the animations, rounded-corners, gradients, drop shadows and bouncy effects for a more craigslist-like UI. Something that's simple, basic and functional.

[seanmcdirmid]

I've been using the new iPad for a few months now and I'm always bothereed to back to an iPad 2 for reading. I can just see the pixels on the iPad2 now, I didn't before, but now they bother me. Blast Apple for raising my standards!

[spaghetti]

Same for me when going back to 2nd gen iPod Touch. What really bugs me about the older iOS devices is the UI lag. It's not a huge deal if you use the device here and there. But where you use it constantly the lag becomes annoying. Hence my general desire to trade UI polish for decreased response time.

Google studied the impact of very small delays on users' search behavior. iirc reducing the search results loading time by 10 ms or so had a noticeable effect. I wonder if something similar could be applied to smart phone UIs? Might be an opportunity for a smart phone OS to substantially differentiate itself from iOS and Android.