What can the original iphone do without service.?

Question

I am thinking of buying a used iphone from a friend. He got it from his cousin, who got the new 3g iphone. His cousin activated it with itunes and at&t. Then the kid who im gonna buy it from, jailbroke it to work on t-mobile. Now...the service on t-mobile is cancelled. What can I do with the iphone. Does everything work the same as it would before except over wifi. Ex: maps, web, itunes store, apps store,stocks, ipod. And obviously excluding the phone and text messaging features.

Answer 1

If there is no service thru your provider then the only thing you can use the iPod and perhaps the web when you're connected to wifi.  

Answer 2

Yeah, I have an iPhone which is unlocked for T-Mobile but i don't pay for the internet and stuff so I don't get Edge on my phone but I can still use maps, stocks, web, etc. when I'm connected to Wi-Fi.  But for sure it will work, just make sure you don't upgrade firmware because if you have a jailbroken iPhone for 1.1.3, you can't update to 1.1.4 like everyone else.  The phone will basically be an iPod touch.