The iSync upgrade provides support for a host of new devices which makes it possible to do the following (if this has been possible all along, I missed it and it's pretty damned cool):

Apple's Bluetooth support is exemplary. And it's worth taking stock. Macs can now send SMS from the Address Book application, and you can initiate and receive calls.

( The Register - Apple: Your smartphone's best friend )

A list of all supported devices can be found here. Discuss