FYI, this is a RADIO update. Bluetooth and iPhone related issues are handled by uConnect which is not part of the 430N radio and thus not part of this update.
Also, bluetooth streaming is an iPhone issue, not a Jeep issue. Google iphone 4 bluetooth audio streaming and see what I mean. Don't expect anyone but Apple to correct this and don't expect to be able to use the iPhone as a dedicated music device in your car, just bite the bullet and buy an iPod Nano or upload the music to the HDD. The iPhone is a PHONE first and has always had issues being used as an accessory plug-in in the same way the iPod is used. Don't get me wrong, I love my iPhone like a child but just like children you must understand their limitations
(just my opinion, YMMV)
Aside from the travel link fix they also improved the GPS interface adding some depth to the Nav icon and additional status bars on the map. Minor but noticeable, it's definitely an improvement.