I was thinking today that it would be great if I could have my iphone in it's dock and get all my sms messages as a growl notification and then have the ability to open the message and respond on my computer.
I expected everyone to say, "meh not a big deal" but looks like everyone likes the idea lol. I think it's ok, kind of mediocore, but I would use the feature.
This could work very easily via iChat (On Mac anyways). Apple would just need to build the communication/interface piece to talk with the iPhone via iChat. Not a bad idea if you have unlimited SMS maybe MMS, etc.