Apple ipod

Is it possible to jailbreak and unlock the iPhone 3G IOS bootrom 4 on Windows w / out SH spots?

I have a 3G iPhone is on firmware 4.0. I spots bears no SH. I have a Windows computer. Can I jailbreak my phone? I use it wrong!

iOS4 has not yet been released and some say no until the advent of 4.1. The only way to be dismantling it. How to reduce iOS4: http://mygadgetnews.com/2010/06/24/how-to-downgrade-ios-4-to-iphone-os-3-1-x /

Jailbreak & Unlock NEW iOS4 4.0 Firmware | iPhone & iPod Touch