Musclenerd just released the much awaited unlock solution for iPhone 4. Ultrasn0w is further updated by adding support of iPhone 4. Latest version of Ultrasn0w supports iPhone 3G, iPhone 3GS and iPhone 4 running on iOS 4.0 and iOS 4.0.1 All you need to unlock is a jailbroken iPhone 4, WiFi or 3G connection. We already posted a complete how to guide on how to Jailbreak iOS 4.0 / 4.0.1 iPhone 4 with Jailbreakme.
If you satisfy all the conditions then follow our instructions to unlock iPhone 4 with iOS 4.0 / 4.0.1 with Ultrasn0w.
Stay tuned with us for your daily dose of iPhone news, you can follow us on twitter via @ihackinjosh You can also subscribe to our daily free e-mail news letter and keep your self updated with the latest of iPhone community.