The iPhone Dev-Team has announced that developers can jailbreak iOS 5 Beta 7 using RedSn0w 0.9.8b7 and you can jailbreak your iPhone 4, 3GS, iPod touch or iPad wsing this tool. Tethered Jailbreak implies that you would require to attach your iPad 1 to PC/Mac everytime it reboots and it is advised that you should save SHSH Blobs of your iDevice using TinyUmbrella to stay on the safer side……………..
MuscleNerd, a prominent member of the iPhone Dev-Team has confirmed that the latest developer version of Redsn0w is indeed capable of jailbreaking iOS 5 Beta 7:
Using this tool, users can easily apply a tethered jailbreak on any device running iOS 5 Beta 7, except for the iPad 2 which can’t be jailbroken using any tool other than the web-based JailbreakMe (which only works with iOS 4.3.3 and below). With a tethered jailbreak, all tasks associated with jailbroken devices, such as installing unauthorized apps and tweaks, can be performed just as normal. The only difference between a tethered and untethered jailbreak is that the former requires the device to be plugged into a computer running Redsn0w whenever it’s powered on in order for it to boot into a jailbroken state. Redsn0w is a reasonably easy-to-use tool, requiring users to simply follow the on-screen instructions. Be sure to follow our simple step-by step guide, yet when asked to point the program to the right IPSW file, remember to point it to the iOS 5 Beta 6 one, not the just-released Beta 7 one. Before you proceed, be aware of the caveats that are always associated with jailbreaking iOS devices. For one, your device’s warranty will be permanently voided, making it much harder to get the device serviced with Apple should any problems occur. More than just support, jailbroken iOS 5 devices also lose the ability to download future iOS updates over-the-air, requiring iTunes for future updates at all times, yet this drawback can easily be resolved by restoring the device through iTunes.