EONS of difference. This phone flies! A coworker has the nexus one and I compared em side by side. Physically, the nexus is better. Very solid, big screen. MTS screen was brighter and more vibrant. Software though... I couldn't tell a difference. I had launcher pro running on my MTS emulating the interface on the nexus one, even the 3d scroll and there was no difference. So far... no dust issue, no wobble and no creaking. It feels more solid than the behold 2 did. Camera is a step back, for some reason there is a delay on taking the pic that is very annoying. I thought I would miss the AMOLED screen but not at all, amazingly enough. Resolution seems perfect for the screen size. I also compared it side by side with another cowrkers droid. If anything, the MTS seemed ever so slightly faster. The screen was definitely brighter and more vibrant than the droid (I turned up the brightness on both). Again though, the droid feels better, more solid. The keyboard on the MTS was impressively better than the droids though. I know the phone is somewhat over priced but in actual function, its as good as any out there I have personally seen.