I've been using the Samsung i760 for about 3 months now, and I've been mostly satisfied. One of my only issues with the phone is the inability to press more than one key at a time - it slows down my text messaging significantly, and makes me miss characters often.
While looking around for emulator software, I stumbled upon:
Samsung i730 Multiple Keypress Fix
While it is made for the i730, I installed the cab file on my i760 and it works perfectly for the keyboard. I'll be speed texting with accuracy from now on, just like I did on my enV.