Very nice model!
I second what you say about MoI Richard, although I do 99% building models, I find MoI very useful for everyday's modeling (furniture, store equipment, etc) and I think I will be more and more a MoI user everyday, especially with the 3ds and obj export because I can use my models with Maxwell Render and Max.
I think that V1.0 will make a great impression and V2.0 (with finished object grouping and editable modeling history) will be a best-seller.
So, Michael, GO ON!!! You have a great program and we are all waiting to see it's feature :)