Thanks for the praise guys, but don't forget there's a *lot* of work in there by Neil and Rowan too. :) We have a great team, and it's growing too. (we're keep what these people are working on a secret for now!)
We're getting multi-leg flight planning soon, we've sent the first beta to developers on Tuesday. They are already using it in ways we never did, so there is some more fixing and finishing to do - but that is why they call it testing...
Here, have a sneak peek! http://www.ozrunways.com/site/wp-content/uploads/2011/07/OzRunwaysFlightPlanner2.5.pdf Stuff already looks different (better) from some of the screens there, but it will give you some idea about the functionality you are going to get. (Terrain won't be in the next release, but soon after.)