It looks like a neat editor, but it's a shame it's (as of yet) closed source. Especially in today's world of dozens of useful products springing up every few months and going inactive shortly thereafter. I'm not usually a religious FOSSer, but I think every editor that has gone OSS has benefited immensely from the move.
What are your thoughts on something like Sublime Text? That's a product which is highly praised by the community, yet remains closed source.
I suspect that, like textmate and unlike vim/emacs, it will be abandoned for the most part.