I've suggested something similar to this, except I thought of it partially as a "wants" list, and part as a "brag" list. I envision special page with two listings.
One would be the "wants", that is, a complete list of all the things that users have suggested, possibly with a (IP regulated to keep folks from casting multiple votes for the same feature) voting option so owners could vote on potential improvements/features they'd like to see.
The other would be the "brag". This would be a listing of all the improvements and added features and their introduction date. This would seem to back up, and promote the very unusual behavior of the Adventure Pilot/iFly team in that they listen to, and act on customer feedback.
These pages would also serve as a feature page for finding capabilities that some of us may not even know this unit has, as well as a reminder of how much this product has changed and improved over time with virtually no additional cost to owners.
I can understand that they wouldn't want to give away internal secrets, or give the competetion an advantage, but I don't see how listing what a bunch of pilots think ought to be in the iFly could compromise their mission. I also wouldn't expect the iFly team to proritize, or give hard release dates until there is no chance of not meeting the priority/date. As a matter of fact, the only input from the iFly officials for this page, would be them posting the suggestions acquired from e-mail, phone, or trade shows, or adding votes gathered through the aforementioned avenues.
All that to say that I would like to see something like this.