famous Pogo quotation is "We have met the enemy and he is us."
The issue is that we will have a cloud based e-mail system and our users expect everything to just open when they click it. They love their Outlook and have been very 'difficult' when we suggest a browser-based approach. If you could get your browser-based application to take control whenever a user opens IPM.NOTE.EAS (for example), we might be able to generate some interest.
That being said, I would still like to get more information. Do you have a web site or technical PDF?