For them to know and you to guess
Look at it this way ............
The more they sell the more they fix, the more they fix the more they sell, the more they sell the more chance of another great addition, then the cycle repeats
I think the whole teams attitude and work method is pushing forward, showing the way things ought to be done
A totally refreshing change from a lot of developers, who after initial success just sit back and only do any updates/patches when they can be bothered to as it maybe effecting the sales
And really after flying it once you've purchased it, you'd be in a tiny minority imho not to become addicted to it (her rather)
Bravo
Tony