Some Sega classics are bundled in "Sega Vintage Collections," one with Alex Kidd in Miracle World, Super Hang-On, and The Revenge of Shinobi, and another with three Wonder Boy games. These games were previously sold as bundles on XBLA, but only individually on PS3. And be sure to check out all the PlayStation Plus extras.
On Vita, Earth Defense Force 2017 Portable is the major highlight, but there are also a bunch of Disney PS1 games you can buy through the Vita store. So that's cool.