Apple release it's second Beta version of iOS 5. Yet to come newly iOS 5 has some new feature and overhauling. You may be seeing new notifications system and of course, the newly announced iCloud integration.
There are a total of nine distributions of iOS beta build number 9A5248D, which includes three for the iPad 2 (WiFi-only, GSM, CDMA), one for the original iPad, two for the iPhone 4 (GSM and CDMA), one for the iPhone 3GS, and two for the iPod Touch third and fourth generations.
There are a total of nine distributions of iOS beta build number 9A5248D, which includes three for the iPad 2 (WiFi-only, GSM, CDMA), one for the original iPad, two for the iPhone 4 (GSM and CDMA), one for the iPhone 3GS, and two for the iPod Touch third and fourth generations.