Apple iPhone Software Update 2.1 is now available for downloading, the much awaited iPhone update includes many bug fixes and improvements, most notable being fix for in call set-up failures, dropped calls, better battery life, improved accuracy of 3G signal strength display and dramatically reduced backup time.
According to Apple website the 2.1 update includes:
    * Decrease in call set-up failures and dropped calls
    * Significantly better battery life for most users
    * Dramatically reduced time to backup to iTunes
    * Improved email reliability, notably fetching email from POP and Exchange accounts
    * Faster installation of 3rd party applications
    * Fixed bugs causing hangs and crashes for users with lots of third party applications
    * Improved performance in text messaging
    * Faster loading and searching of contacts
    * Improved accuracy of the 3G signal strength display
    * Repeat alert up to two additional times for incoming text messages
    * Option to wipe data after ten failed passcode attempts
    * Genius playlist creation