Should i get an old iphone or new PSP?

I'm a big gamer, but I like all the apps. Christmas is coming and I don't know what to ask for.

If you were going to go with handheld gaming I'd at least go Vita or go with the DS. I'm not a big Nintendo fan but let's be honest they have been more successful with handheld and are better at selection here in the US in general(graphics on teh PSP and Vita are BETTER then DS, but I'd be looking at the games I want instead of just graphics). Probably better with the phone IF someone else is paying the monthly bill though.