Thank you in advance,
Thank you for your response.
1. Nice one!
2. I want to be able to maximize code reuse but also preferably not use AIR on PC/MAC. If its better to write an Adobe AIR for a specific platform then this is something I'm willing to consider but I would prefer (like most) to use Flash. I'm not sure this is a wise decision for mobile given the recent news about future Adobe Flash support in mobile, so I'm also considering Flash for PC/MAC and AIR for mobile anyhow.
On issue 3. Alchemy was free to use legally commercialy or not. However Adobe was open about it being experimental and does not guarantee anything including support on future versions of Flash. Actually Alchemy as we currently have it, is currently not supported if targeting Flash Player 11.2. It does work on Flash player 11.2, but you can't target 11.2
However Alchemy 2 will be a paid product so you will have to read the license agreement there, but I would assume that you can legaly use it for commercial puposes if you purchase the license.