Another beta release of iOS 5.1 is now available, a while ago Apple seeded iOS 5.1 beta 2 for developers, this particular release focused on bug fixes with some features improvements, this update has a build of 9B5127c and this will run on such exact hardware given that the prior release; iPhone 4, iPhone 4S, iPad, iPad 2 and iPod touch 3G and 4G.

As just the same to the other beta release of iOS, this is only for developers, if you are an Apple registered developer you can grab the firmware update straight from Apple’s iOS developers center.