Apple has released iPhone firmware update 3.1 with some new features. iPhone 3.1 offers recommendations for ring tones and apps. You can expect to get support for iTunes 9 for both Mac and Windows downloads. Moreover, there are options to sync music, movies, TV shows, podcasts.

Now you will have options to sync music, TV shows, podcasts and movies. Also it contains the fix which iPhone user faced to save trimmed videos as new clips. This update contains locking for phone too.

It also contain following features:

• App update-ability through iTunes
• Increase battery power
• Fixes about iPhone SMS vulnerability problems from iPhone OS 3.0.1
• Downloading ring-tones wirelessly from iTune store

You can download the firmware from Apple’s website.