How to Get the iPhone 3Gs Without the Contract at Regular Price?

well heres really what i need to know... what can i do with an "unlocked" iphone? i just want to use the phone as a camera, an ipod, and surf the web. i dont really need to use it as a phone. basically, can i use an unlocked iphone 3g like a 2nd gen iPod touch with an added camera function? ________________ unlock iphone 3g 3.1