Hey, I tried to upgrade to .7-2 and it says:

I was using version .6 with no issues and am not sure if the attempt to install was successful because it still runs fine. The "Application Manager" shows the broken red exclamation icon next to "grandcentral_dialer" and shows it as 0.7. The "About" does not tell you the version you have just "Copyright 2008".

I guess, as long as it still works it's no big deal but just was curious.