'Okami HD port to PSVita' immediately comes to mind. The game was made to be played on that system. It's absolutely perfect for it.

PLEASE, Capcom, make it happen. I never had the chance to finish the Wii version, something that's been nagging at me for years now. And I never owned a PS2/PS3. BRING THIS TO VITA NAO!

(And for bonus points, an Okamiden remake would be welcome, too.)