BlackRa1n RC3 which is bundle with blackSn0w also enables official tethering. Blackra1n RC3 is by far the fastest and the most complete jailbreaking and unlocking tool for iPhone running on the latest iPhone 3.1.2 firmware. Blackra1n, has been updated to RC3, with hacktivation support, 15 second speed improvement, Tiger+PPC support, and installation of the latest blackra1n.app.
The latest RC3 version includes blacksn0w which can unlock iPhone 3G and iPhone 3GS running 05.11.07 baseband. Follow the simple step-by-step guide below to jailbreak all iPhone’s (2G/3G/3GS) and iPod touches (1G/2G/3G) on firmware 3.1.2.
How to know if your iphone is thethered/newboot or not..? check here or here.
Download: blackrain for mac and xp here by geohot.
