i can give reference to both devices. I own both and switch back and forth almost daily . Yes, i know, I'm far to obsessed. But they are both great devices and whatever one you decide upon i can say will make you happy. The Droid X does seem a bit faster as if motorolas tweaks were designed for the X and then just ported over to the D2 with less attention to detail. But the Droid 2 does have a keyboard, more comfortable size and just feels better in the hand. Not to mention Fission is designed for the D2 then ported over to the DX. But the DX has its advantages also, its motorolas flagship, It has slightly better hardware in some areas like camera and FM radio functionality (this is also available on the D2 in a sketchy manor) and the developer community is much larger for the DX. Most of the OG Droid devs jumped to the DX and not the D2. So it really depends on what you want most out of your device. Battery life is slightly better on the Droid X in my experience, but the extended battery for the D2 adds almost no size and comes with 37% more battery life. Not to mention both devices can be underclocked/undervolted to reach nearly 48 hours on a single charge with usage. so in general both are A+ devices.