Just thought give a tip of my hat to you. I had a quick play around with the simulator and did a few of the missions. Pretty good for an alpha.
I look forward to the documented API. Its a shame you pre compiled most the campaign, we might have been able to see under the hood some more, but we can wait.
It obviously needs some polish, but others have already mentioned that and its still in alpha :)
Having said that, keep at the development and know that people are following your progress.