Fast is better than slow. Sometimes even at the expense of correct. - Joel Webber

Yeah, speed is the main reason I'm not as happy with my TiVo as I was years ago. I don't care about all these features they're adding. I just want it to be fast. Speed is also why I'm not happy with newer TVs, or cable boxes. Changing channels used to be instantaneous. Now it's sooooo slow. Speed is also a big part of why I'm using my iPhone instead of my G1. - Amit Patel

@Amit, re iPhone vs. G1: Exactly -- Android's definitely getting there, but I feel like work remains to be done on making all the user interactions feel snappy, especially the way they do blitting of the app list and the home screen. Apple definitely got that right from day one. - Joel Webber

Sometimes, Android seems to suffer from GC lag. However, iPhone lags sometimes too when some background process is working hard (switching from 3g to Wifi, or saving data to memory). I've had times when I had to reboot the iPhone. Both TiVo and AppleTV are way underpowered and irritating. I'm a big TiVo user, but the UI is so fricken slow sometimes, it really lags when an HD channel is having reception problems, and re-ordering scheduler items sometimes takes MINUTES while the UI is frozen. - Ray Cromwell