We recently covered Beards and Beaks entering the Marketplace and featuring DLC/IAP (downloadable content/in-app purchasing), so signs were strong that this could be possible for developers when the update hits. Unfortunately, as one can see in the above snippet, we see Todd Brix explaining on the AppHub post that this wont be the case and IAP will be absent in Mango for developers.
Beards and Beaks is developed and published by Microsoft, so this could well be a test run for a future implementation of the feature. Developers have long asked for the implementation of IAP for their own projects. What do you guys make of this?