Hmm, so I just bought Lumines + Rayman Origins on PSN (via the Vita).
Went to buy Escape Plan, and I got a connection lost error on both my Vita and the same when I tried on my PS3. Thought maybe my CC got flagged or blocked for so many purchases in a row tonight (Gas, vita, memory card, 2 games) but the bank said there's no block or anything...
Weird coincidence..
Also, how do I know if it's charging? I have it plugged into the front of my PS3, and the "USB Power Supply" option is checked in the Vita settings, but the PS button is blue - not orange.