The Playstation Vita is Sony's new handheld device, slated for release late this year in America (and hopefully here also). The Vita has an insane amount of power for a portable device, and easily has the power to output visuals approaching the home consoles. The Vita has an awesome amount of cross play with your PS3 and in WipEout 2048 you can play people in real time on the PS3.
The screen is amazing. So crisp and beautiful.
Finally the Vita has awesome controls. Two analog sticks, which is the best part for me. No longer a stupid single analog nub, we can now actually control a 3D camera and play proper action games without clunky control schemes. And the touch pads look quite cool, especially in LittleBigPlanet. Check out that game, it actually looks better than the PS3 version.
So my final thought: DO WANT!!