RedSn0w, the easiest iOS jailbreaking tool has updated a new version redsn0w 0.9.8b2 to jailbreak iOS 5 beta 3. Earlier, just after iOS beta 3′s release, iPhone dev-team had announced that their previous version was still capable to do the jailbreak process on iOS beta 3. But users had experienced some sand box errors while running App Store applications. Hence they released this new update for both Mac and Windows. If you have already jailbroken your iOS device using the rpevious version redsn0w you do not need to jailbreak the device again. Use this new version to boot tethered. Download links are given below this image.
Download RedSn0w 0.9.8b2 [Mac]
Download RedSn0w 0.9.8b2 [Windows]