Google Sync Bone-headed Behavior

Simple set up. Horrible behavior by Google Sync.

1. Outside meeting invite comes in via email (Outlook generated?) to my Google email. It also arrives on my Blackberry.
2. I accept the meeting.
3. Both Blackberry and Google calendar put the meeting on their respective calendars.
4. Google Sync duplicates the meeting in both places.

Arrghhh....

Every meeting I get invited to, shows up as two entries, at least on my calendar online.

Is there a reasonable workaround? If I use BIS calendar sync instead of Google Sync, does this happen? I am staying with Google Sync for now only because it lets me sync multiple subscribed calendars, and Google Sync does not.

Can someone please comment? Am I the only one?