Dev-Team's quest for unlocking iPhone 4 continues. Dev-Team has posted a new article on its official blog titled ultrasn0w is growing!. The article states that they have successfully accomplished carrier unlock on iPhone 4 with Utlrasn0w tool and they are now in the process of fine tuning the tool for public release.
I found this video demo on youtube by @planetbeing (Dev-Team's member) showing first unlocked iPhone 4.
Dev-Team also emphasized on staying away from all fake Twitter/Facebook accounts trying to capitalize on the public's eagerness to get the unlock before a public release. Only legitimate sources for updates/news from Dev-Team are @iphone_dev, @ultrasn0w, @planetbeing, @MuscleNerd. [via Dev-Team]
So, iPhone 4 carrier unlock pretty much seems a reality now! We will keep you posted. In the mean you may like to go though following tutorials:
Update 1: MuscleNerd Carrier Unlocked iPhone 4 with Ultrasn0w
Update 2: Unlock iPhone 4, 3G, 3GS iOS 4.0 / 4.0.1 With Ultrasn0w 1.0-1
Update 3: Ultrasn0w 1.1-1 Released! Standby Battery Life Issue Fixed!