![iPhone 3.1](http://www.fonearena.com/blog/wp-content/uploads/2009/09/iPhone-3.1.png)
Apple has just announced the release of iPhone OS 3.1 in its Rock And Roll event that happened today.
The new update brings in many important changes like:
- Genius Recommendations for Apps = Get recommendations for apps you might like based on apps you’ve already bought/downloaded from the App store.
- Genius Mixes = iTunes can now create up to 12 playlists based on what’s already there on your iTunes library. and unlike the Genius feature, you now don’t have to choose a sample song as well.
- A Brand New Ringtone Store = Choose from a wide variety of ringtones on the iTunes store with over 30.000 ringtones available for 1.29$ / each ringtone.
- Organize Apps in iTunes = You can now use iTunes to drag and drop apps onto your virtual Home screens on your computer, then sync them back onto your iPhone/iPod Touch.
iPhone 3.1 Update also brings in many other changes like:
- Improved syncing for music, movies, TV shows, podcasts, and photos.
- iTunes U content organization.
- Redeem iTunes Gift Cards, codes, and certificates in the App Store.
- Display available iTunes account credits in the App Store and iTunes Store.
- Save video from Mail and MMS into Camera Roll.
- Option to “Save as new clip” when trimming a video on iPhone 3GS.
- Better iPhone 3G Wi-Fi performance when Bluetooth is turned on.
- Remotely lock iPhone with a passcode via MobileMe.
- Use Voice Control on iPhone 3GS with Bluetooth headsets.
- Paste phone numbers into the keypad.
- Option to use Home button to turn on accessibility features on iPhone 3GS.
- Warn when visiting fraudulent websites in Safari (anti-phishing).
- Improved Exchange calendar syncing and invitation handling.
- Fixes issue that cause some app icons to display incorrectly.
It is available for download right now! So if you have an iPhone/iPod Touch, I would recommend you to upgrade to version 3.1 now.
However if you have a unlocked and jailbroken iPhone, I would recommend you to not update to OS 3.1 right away and hold on for a while until the you hear anything from the iPhone Dev Team.