Sony's new PSP is named "Vita" not the most original or appealing name but still it's better than nothing right? Here is the official announcement trailer of it.
And Sony also discussed the Prices here:
The PSVita will be available around Christmas 2011 and will offer a Wi-Fi only model for $249.99 and a Wi-Fi + 3G Model for $299.99, the 3G model comes with an AT&T contract so be careful which model you choose.
Here are a few games you can expect for the Vita
Street Fighter X Tekken:
Little Big Planet:
Uncharted: Golden Abyss: