Hello everybody. I got a few questions about iPhone 3G S. I stayed up during the WWDC 09 which Apple held. I watched it via live stream but its quality wasn't too good. I got a few questions about it now. I already know basic features of this new iPhone and I also know about its overheating issue but that was because of users using it too long. So, I wanted to get some answers from you Lowyat guys/girls.

1. iPhone OS 3.0 is out but iPhone OS 3.1 Beta was recently leaked. Is there any additions to version 3.1?
2. If I am going to purchase a iPhone 3G s containing version 3.0. How do I upgrade/format it to other leaked versions?
3. What are the best Medical softwares for iPhone OS? - Most Important Question
4. Lets say I want to get iPhone 3G S from Maxis when it comes out. What are the plans available for a user that needs unlimited internet browsing?
5. Are there any dealers other than Maxis who distributes iPhone 3G s legally?
    a - Dealers selling iPhone 3G s without any packaging
    b - Dealers selling iPhone 3G s with packaging
6. How much will it cost?
7. What the hell is the meaning of Jail Break? Does it mean that it allows us to install 3rd party applications?

Thats about all. I don't know the answers to this questions but if you ask me anything about Microsoft related stuff, I can answer it within seconds.

Sorry if my spellings are wrong. I am in a hurry.