Yea Motorola do kinda kill the beauty of Android, though it's good to see they've started doing it differently with the Xoom having an unlocked bootloader.
And the Thunderbolt looks nice, but I find them too large for a phone personally. I've tried the HTC Desire HD, which is basically a GSM version of the HTC Thunderbolt. The new HTC Desire S looks nice though. Not much different in terms of hardware to the original Desire, but it's slimmer. Not enough for me to upgrade from my trusty Desire though, lol.