Something reminded me of this again today, and it made me very sad that this never happened.
SSX was my game of 2012 (beating off some pretty decent competition from WipEout 2048) and it would've worked perfectly on Vita. The "global events" system on the go... geez. Just download the event over wi-fi before you head out, then have a few attempts while you're out of the house and then upload your score when you get home. Would've been amazing.
I'm hopeful that the newly formed third-party-relations team will make sure that stuff like this doesn't slip through the cracks again (games capable of running; devs expressing an interest in doing it). I guess Vita is kind of limited in the scope of things that can be ported to it (although NFS:MW was impressive), but there's still plenty of upcoming games I'd love to see. Bleh.