I'm on iOS, and I haven't jailbroken my phone. I'm thinking of going Android when my contract is up, but I haven't decided yet. Since I work in IT, I get free computer stuff a lot. I was able to get a decent desktop recently, so I bought an SNES to USB controller adapter and set up an emulation station on my TV. I had a spare HDMI enabled video card laying around, so I have SNES games in HD, and it doesn't look bad at all. I'm a bigger fan of playing games on the consoles they were meant to be on, but it's nice being able to play stuff that I don't have to shell out a fortune for.
I'll keep this emulator in mind if I do get that Android phone or go ahead and buy an Android tablet.