Hi!
I feel like, both Artisteer and TT have the same handicap: both use a full length horizontal menu that only can be placed over or under the header. What if we could have a menu which we could freely move around, with a dynamic width (depending on the items), that we could set anywhere around the site? Something to have more freedom to design very different things, like a menu inside the header, or over a corner, or floating between two different areas. I think it could be very interesting and eye-catching ;)