Destructoid reported yesterday that some Best Buy stores are starting to get PS Vita demo units for customers to mess around with, though apparently they're only at a select few locations so far. So call your local store and see if they have one—if you haven't already seen the Vita in person, they're pretty impressive.
The demo units are equipped with 4GB memory cards and Little Deviants, the game that will come packaged with some early Vita bundles. It might have been smarter to demo Uncharted, but oh well. Instead of display kiosks, the systems are chained to employees, presumably to avoid theft and so they can wipe your drool off the screen before it has time to do any damage.
If you get a chance to play on the Vita before its Feb. 22 release, let us know what you think in the comments or on Twitter.