There's the Nokia internet tablet (the n800 I think?) in terms of reasonably-ish priced devices. On the higher-end of the scale there are the new UMPCs which would be fully functional computers.
Of course, the iPhone has a fully fledged Safari browser - and it's an iPhone. I'm sure that more savvy people will be able to tell you about more devices.
I Like my psp along with 3 other people. Not for gaming as much as the fact that I stream all my favorite Cnet podcasts on it such as Buzz Out Loud, But, I really want a device that can display internet pages along with RSS. Does anyone know of A device, with Wi-Fi. I am set with my cell phone, nothing like that, just a device that does those things I want good.