From what I can tell, there's no way to see it on a Vita. You need a PS3 for this.
I've had a PS3 for awhile and a Vita since December. PS+ Since January and PSP at launch,but I don't think that was ever on PSN.
I assume basically all PS3 owners will get this and it will be mentioned at today's PS4 announcement. It just takes time to get to every PSN member.