Phone, i'm gonna go all out. Processor? In my case, i'm running a 6 year old Core 2 Duo anyways, which does ALL I need it to. Anything would be an upgrade for me. I have always built my PC with a) budget parts; or b) last year's "big thing". For what you do, Intel is probably best; although you could probably build one hell of a cluster with AMD stuff for the same price. I just know i'd NEVER pay over $300 for a processor alone. I simply don't make that kind of $$$ and the extra money I do have to throw around, I throw at mobile hardware.
But see, therein lies the conversation. Someone asked about AMD getting into the mobile game. Given their track record, you'd end up with mid-range phones at best, low end cheap phones being most likely. AMD is not going to challenge ANYONE for the high end smartphone or tablet market. Even with all of Intel's resources it's going to be a challenge for them. AMD simply wouldn't have a prayer in hell in this market space. Right now Intel has put out a mid-range phone with Moto in the RAZR i. As I said before, this is simply to get a level set on where the issues are that need to be improved so they can attack the high end with a quad core next year. You've got to think they've got tablet ambitions, as well, and not just that Windows 8 stuff. AMD is so far out of their league in this space it'd be pointless. Even TI, a company with YEARS of experience in this space, has given up. I don't care what it costs, AMD ain't gonna be on my phone.