Apart from this disagreement, donationware is super tough, the conversion rates aren't great in general -- and this will reinforce the assumption that linux users don't want to pay. It's a shame all round.
They had a strategy to monetize their App Store, so it wasn't totally donation-ware. I think they fumbled by being purists and not accepting closed-source software in their store. I was initially excited about the concept until I looked more closely and found a pretty high commission, the open-source requirement, and some half-baked programming language. These were foolish missteps.
