PC, PS3 and PS Vita currently.
PS3 will eventually be replaced by the PS4 and I'll probably buy a 3DS in October for Pokémon X and Y.
[PS Vita] Atelier Rorona Plus (34%/on hold)
[PS Vita] Atelier Totori Plus (1%/on hold)
[PS Vita] Atelier Meruru Plus (100% completed)
[PS Vita] Atelier Ayesha Plus (50%/now playing)
[PS3] Mugen Souls Z (just started)