http://dragons-crown.com/#multiplay
Dragon's crown site updated, and has some new information about multiplay
Basically, both PS3 and Vita version supports online mulitplay using PSN account.
PS3 and Vita version have cross-save features, but it does not support cross-online multiplay between PS3 and Vita.
For online play there is random matching system where they match you with someone who have similar level as you.
edit: please take out not in the title.
Dragon's crown site updated, and has some new information about multiplay
Basically, both PS3 and Vita version supports online mulitplay using PSN account.
PS3 and Vita version have cross-save features, but it does not support cross-online multiplay between PS3 and Vita.
For online play there is random matching system where they match you with someone who have similar level as you.
edit: please take out not in the title.