I played with the T-Mobile version and the screen is amazing but besides that I dont like Samsung devices and their UI is terrible. The X is the best android device I have owned and intend on keeping it for a while. There will be new devices coming out every month so at some point you have to pick one or go broke!
The Samsung's are having pretty serious GPS issues. I'm currently an original Samsung Omnia user. I've lived this nightmare before. Samsung says they'll patch it, but the patch takes 1 year to arrive and doesn't work much better than it did.
Nope... not a chance I'll own the Samsung until it is widely reported by user's that the GPS issues have been resolved.
Haha yea the notification light thing bugged me too. When I saw the post of that app that will put a small square on your screen to simulate a notification light I laughed because that had to be created.