Most of the recent rumors were true:

9.7-inch  2,048-by-1,536-pixel resolution Retina Display, better color saturation.
A5X Processor, quad-core graphics
LTE 4G – Supports HSPA+ up to 21MBps, DC-HSDPA at 42 Mbps, and LTE at 73 Mbps (Supports AT&T and Verizon LTE in the US. Telus, Rogers, Bell in Canada). 3G World ready.
New 5MP rear iSight Camera. Back-illuminated sensor, 5-element lens, auto-exposure, auto-focus, HD video recording in 1080p
Siri-like voice dictation. Microphone button on keyboard
9.4mm thin, weights 1.4 lbs
Same battery life as on iPad 2 – 10 hours, 9 hours on 4G

Same prices as for iPad 2:  $499 for 16GB model. $599 for 32GB, $699 for 64GB. 4G is $629/$729/$829
Available March 16, can be pre-ordered today.

The name is just iPad, not iPad 3 or iPad HD.