You can't customize to your heart's desire. And if I say I don't even have time to root it, what makes ya think I have time to mess with my already unstable apps? I stir in my sleep at night with visions of "force close". Yeah, that's exactly what I want to do, add fuel to the flames. Only way you should get swipe marks etched in to your screen is if you're digging through sand before touching your phone.
The multitasking blows for a poweruser. For instance, I was typing in a reply here, went to home to play a different song, saw that I had some emails, checked them and opened a one page pdf and come back to the browser and it sent me back to google homepage. Whereas the pre you can zoom out and any other app. Secondly, I haven't had music skip on my phone in about 8 years. And even with just the music app playong and I get a text, and the evo is on silent it stops playing for a sec.