Let the hive mind of Engadget get that for you.
"I just switched to Sprint from Verizon about three months ago for the Pre. Then I went for the Hero about a week ago. Now, I miss my hardware keyboard and am thinking about switching to the Moment. I am still able to switch back to Verizon if I want and get the Droid when it arrives. Should I just trade up to the Moment when it comes out, see if I like it, and if not switch to the Droid? Or something else entirely? Help!"
The worst part is that Sony has recently fallen down on quality control, which they were previously famous for. Dead pixels on the PSP, exploding batteries, BluRay drives that won't play BluRay movies, and don't get me started on Vaios. The PS3 may turn out to be the Edsel of consoles.