>Whenever I see a third party tool I ask myself: how quickly it will be updated to the last SDK version? Say Apple releases a iOS6 today. Will an aligned version of the tool be ready today? If not, when? One day would be fine, one week would not.

Really why? I don't even update my original XCode straight from Apple that often.

When you sell to customers (for profit), you want to target previous versions of the iOS, not the latest, and surely not within a week.