Because I have just spent the past 20-30 minutes trying to figure out why my Application Bar button was not being disabled when I set the IsEnabled = false on an ApplicationBarIconButton only to find out that this is a bug in the CTP I thought I would share this just in case someone else was having this issue.
If you are trying to disable your App bar icons by using the IsEnabled = false, it will NOT work in the current CTP (this may this is only valid for installs done prior to this date 06.09.2010).
For more information you can read this thread http://social.msdn.microsoft.com/Forums/en-US/windowsphone7series/thread/7849375c-3092-404e-9d74-ac93ea3ec597
Hope this saves others from pain and suffering.
Till next time,
06-10-2010 6:31 AM