Now that ACT! & Outlook have a better & consistent working relationship I'd like to suggest right mouse click functionality. It's cumbersome (and just more clicks) to click on Add-Ins from the Outlook 2010 ribbon. Can the ACT! email functions be added to right mouse click pull down menu?
The way I envision this product is to be on an email in the inbox and right mouse click and select Quick Attach or Attach to Contact (plus other ACT! functions - create activity, etc.).
There is a 3rd party add-on (ACT! email connect & ACT! email connect professional) that has had this functionality for years (and even more), so I know it's possible.