Do you guys see this multipage functionality as something that could be provided in a module, or something that needs to be incorporated into core?
As I've mentioned before I've written my own module to do multipage, but it's more customised to the checkout processes of our clients, and it's for the most part separate from the normal ubercart checkout, meaning all the administration pages for checkout don't really have any relevance on our sites.

I'm keen to lend a hand in doing this, I just wanna know if I should take a shot at rewriting my module in a more generic way attempting to use the ubercart pane system, or if there should be an effort to get this into core?