itunes jailbreak iphone 3g

What is the best way to Jailbreak an iPhone 3G so you can use to T-Mobile?
And once that leaks, is there anything else I should know on the use of Jailbroken iPhone 3G? And you can download applications from the iTunes Store for the best?
ULL and their need for easy to get a SIM card hack your phone and insert it along with the UR t-mobile SIM card, u can get into the eBay search only "SIM Unlock iPhone" and ull be able to use it T-Mobile (I do)
Jailbreak 3.1 Firmware iPhone + 3G & iPod Touch
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Bad Elf GPS Receiver for iPod touch, iPhone, iPad and iPad 2 (66-channel, SBAS/WAAS, 10Hz) $99.95 The Bad Elf GPS receiver plugs into the 30-pin dock connector on the iPod touch, iPhone, iPad and iPad2, providing high performance GPS data to ALL location-based iOS applications in the App Store. This Apple-approved accessory allows owners of iOS devices without an integrated GPS receiver (original iPhone, all iPod touch devices, the iPad Wi-Fi) to use mapping, navigation, geocaching, golf ran… |