Purplera1n (beta) for Mac to Jailbreak iPhone 3G S running 3.0 firmware has been released and is available for download. Last week, GeoHot released the Windows version of Purplera1n. Currently, The Mac version of Purplera1n is only for intel based Mac and PPC Mac users will get error.
The best part of the purplera1n is that there is always a possibility to get back to a jailbroken state, if the apple updates its baseband to fix the jailbreak. Once that you’ve got your jailbreak done, you can then use the ultrasn0w utility from Cydia to unlock your iPhone 3GS. You can also use redsn0w to unlock your iPhone 3G. If you are looking to unlock or jailbreak your iPhone 3G S you are advised not to upgrade to 3.1. Geohot and Dev team has also advised users to save their iBEC and iBSS Signature Certificates of iPhone OS 3.0 for upcoming Jailbreak tools.
If you are facing any issue on jailbreaking iPhone 3G S just email purplera1n.support at GMail and attach your purplera1n.log file. Or call the purplera1n support hotline @ (650) 265-1210. You may follow George Hotz on Twitter.
Download – [Purplera1n (beta) for Mac]