iTunes 10.5 beta 7 is a special version of the program developed by Apple that allows developers of iOS applications to install iOS 5 beta. Like any other Apple beta program, iTunes only works for a certain period of time after which it asks the user to install a newer version. If you have iTunes 10.5 beta 7 installed on your computer, then you certainly received a message warning you that in over 100 hours iTunes will expire and you will have to install a newer version.
Tomorrow Apple will most likely release the official version of iTunes 10.5 which it is advisable to install otherwise you will no longer be able to use the program to synchronize applications, back up your terminal or install iOS 5. iTunes 10.5 must be installed to upgrade to iOS 5, because version 10.4 is incompatible with the new operating system and cannot be used to restore. In conclusion, try to ignore the warning messages because you will install the final version of iTunes 10.5 in maximum 2 days.
