An August 28 firmware update for the Vita will add several new functions to PlayStation's latest handheld.

Cross-controller functionality will give those with a PS3 the ability to use the Vita as an advanced controller for some applications on that system. Games-wise, cross-controller support for LittleBigPlanet 2 has already been announced, allowing “a host of new single and multiplayer game play features” according to Sony.

The update will also allow over 100 PlayStation one titles including Final Fantasy VII, Metal Gear Solid, and Resident Evil 2 to be played on the system.

PlayStation Plus is coming to the Vita, free for those who are already members on their PS3. Cloud storage on the service will be increased from 150MB to 1GB this September.

Cross-buy is to receive wider support, with Ratchet & Clank: QForce, Sly Cooper: Thieves in Time, and PlayStation All-Stars joining the service.

Elsewhere, Sony has also announced that its PlayStation Mobile service would expand to some Android devices and also to the Vita. ASUS and Wikipad were revealed as new partners in the program.