Yes you must. Why would you want to stick with Android 1.5 on your Sense UI beast? According to numerous sources, Sense UI works great, and has the new touches that its friends the Desire and Legend have; the leak is courtesy from the always-working xda-developers. Of course, you could risk destroying your phone and your data, but anything for some Android 2.1 goodness, right? Right? OK maybe not, but the Sprint Hero ROM has been leaked as well. There’s another good excuse. Check out the source links on how to get started, but be careful ‘kay?