In general I am enjoying the upgrade to iPhone 4. I have none of the reception issues talked about in the media. In fact my reception is better than my 3gs. I had never connected an iPhone to my Macbook Pro, but decided to try today. My Macbook sees the iPhone attempt to connect. My iPhone displays the attempt with the correct 6 digit code. I click sync and then it says it was unable to connect. I am running OS X 10.5.8. Any thoughts?