I add my vote to integrate support for AOPA's Flight Planner. I've been using it most of this year and am very pleased with it. They have moved ahead of everyone else in terms of ease of use and integrate features like live weather. Like iFly, the developers are all pilots, so there are lots of common sense features.
I attended the Flight Planner seminar at the Prescott AOPA Fly-in Octt 1 and learned they offer a free integration kit for EFB developers. They mentioned that they would very much like to have Adventure Pilot on board during the presentation.