Interesting point but since you already have all for the Windows, it seems you've committed to development on Windows, so why the rush to switch to the mac side?
Okay, I'm using both systems happily, and the one main app I'd like to see ported onto the Mac would be Shopping Cart Creator (SCC). There's just no decent (and by decent I mean highly affordable, and by highly affordable I mean cheap! Yes, cheap!) shopping cart for Os X.
I'm not sure how CC's HTML editor is going to compete with powerhouse like textmate, writeroom, or BBedit, since there's already serious competition going on there, but a market which is there for the taking, like Shopping Carts and FormBuilders are just waiting to be gobbled.
With OS X slowly gaining market sure, it makes sense to serve that segment. Kudos.. kudos..