Why not to pick the I760 over xv6800
1) half the on board storage memory
2) distinct lack of samsung rom upgrades and inability to cook your own custom rom
3) larger device
4) persistant issues with the touch screen going out
5) lack of sdhc support beyond 6gb even with driver hack
6) proprietary charging port (6800 uses mini usb)
7) inferior reception to xv6800

hardware doesn't support future upgrade to evdo rev A
9) ext battery in i760 is 1500mah same size as stock xv6800 battery
10) xv6800 can use the new $30 unlimited email and web for smartphone similar unlimited for i760 is $45
I sell both of these phones and have used each for quite some time both are good phones but the htc is well worth the extra $50.