I just had a few questions about hacking an iphone.

1: Is it true that theres no jailbreak out yet for OS 3.1? (3g)
(Im led to believe there isnt for windows but there is for mac, is this true?)

2: Is it possible to jailbreak an unactivated Iphone (either OS 3.1 or 3.0)?

3: Is there any way to bypass activation for OS 3.1 (through jailbreaking or otherwise)?

Thanks in advance, I tried searching the fourms and internet but things are still unclear for me, lots of conflicting information.