Samsung EPIC 4G
Sprint's getting another 4G phone that does HD video!
The quick and dirty...
operating system - Android 2.1 (Samsung custom)
screen size - 4" SUPER AMOLED
camera - 5 megapixels, 720p recording with VGA cam on front (like iPhone 4)
keyboard - slide out keyboard for those who prefer buttons
speed - up to 10 mbps in theory
wi-fi - 802.11b/g/n
Should you buy?
No, stick with the Evo 4G if you're on Sprint for the bigger screen. Samsung phones are good, but I don't see any reason to buy this phone over the Evo unless you have an affection for AMOLED screens, which is understandable.
Phone suggestions by network:
Sprint - HTC Evo 4G
AT&T - Apple iPhone 4
Verizon - Droid X (coming July 15)
T-Mobile - MyTouch 3G Slide
The other guys...
MetroPCS - Samsung Caliber
Boost Mobile - Motorola i1
Net10 - Samsung R355C..