Well, I have been having a problem with my 3G updating apps over the air to my phone but I discovered that if I deleted the app on the phone the update would load with no problems. Here is my problem, an Air-share update became available, so I deleted the free (pre-fee) app to do the update, as soon as I deleted the app on the phone the update icon disappeared and is missing from My iTunes app folder and appears I will have to pay the full price to get the program back. Don't get me wrong I don't mind paying for a useable app but the pretense this was advertised is F%$^&%D. It was advertised as free until a certain date, not a trial until that date.
Which bring me to my next rant which is no trial period for most apps, I believe if a developer is proud of an app it should have a trial period.