I understand where you are coming from, and that is one of the biggest challenges for us. We really feel that with an email centric approach, we can help companies which want to do light-weight collaboration, and are fine with trading off very rich functionality for a simple email centric workflow.

Do look at our reviews on the Google Apps marketplace - we have quite a few companies as paying customers now: http://www.google.com/enterprise/marketplace/viewListing?pro...