We haven’t heard much about iOS 5.1 from Apple ever since they released iOS 5.1 beta 3 a month ago, which might indicate that beta 3 was the last beta for iOS 5.1. Apple published 11 new profiles to Asian and European carriers indicating a potential release for iOS 5.1, according to YourDailyMac. The profiles indicates that iOS 5.1 will release on March 9th. These new profiles will make sure that iPhone running iOS 5.1 can connect with the carrier.
There’s also speculation some speculation that Apple will announce the next iPad (iPad 3) along with iOS 5.1 next month. It can be true, but take with a grain of salt. Apple has never had a big announcement of a Friday.