i have a HK vita.
my main PSN account is singaporean.
all the PSP games were downloaded from the singaporean PSN store.
i had to redownload all my PSP games onto my PS3 because the 'old versions' (with 5 activations allowed) wont transfer over to the vita. once i download the 'new versions' (with only 2 allowable activations), it let me transfer them over.
the PSP games all appear in the content manager. was able to copy them all over to the vita except for three of them (def jam fight for new york, beats, EA replay)
i cant take any good shots of motorstorm running because i have a crap camera on my phone but here's the PSP games on the vita.