Would you be willing to answer a few brief questions about PlayStation Forums?
Skype 1.60 has been released for PSVITA. This adds the functionality to continue calls even when Skype is in the background.
Testing now to see if I can call while I have a game or internet browser up.
The call kept going while I was playing a game (LBP PSV)! Looks like we have cross-platform voice chat, guys!