The main reason for rooting my phone, I think, is to use A2SD. Now that Froyo is out for Nexus, I haven't seen mentioned whether it allows apps to be installed on the SD without rooting. What's the answer?
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?