According to The New York Times, 3G is definitely there, but the AMOLED screen has been traded for a 5-inch LED panel. Other specs include front and rear cameras, two sets of button controls and motion sensors. With the exception of an announcement about the PlayStation Suite, an app store for PlayStation games, the rest of the NGP is shrouded in mystery.
The long-awaited successor to the PSP collection will be on sale by the end of 2011. Sony wasn't anymore specific than that, and we'll have to wait and see about pricing too. Nor was there any mention about the PlayStation Phone, but hopefully we'll see more of both by Mobile World Congress next month.