Since I can't post a reply (see other forum for technical issues) I'll start a thread the administrators can move if they want. I downloaded the new beta version and didn't like it overwrote my older version instead of installing a new (beta) version to compare.
As for what I wanted to reply about problems, while the beta solved the hide unused HD's (like iDisk), it didn't solve the problem of the pesky pop up window whenever Time Machine ejects the HD on the desktop at the end of the backup process. It still opens the app if it's hidden to pop up a window it can't eject the HD. When I catch it listing the TC HD it won't hide it.
This still raises the question why is the app looking for HD's which aren't necessary or used? Why not let the user add HD's than hiding or eject them? Why is it even looking for sources when the user can add them?
Anyway, that's my bug with it. I don't open it now except for occasional use and don't hide it when not in use, I hate seeing a string of popup windows if I go away for awhile or overnight.