Guys,

My idea may sound aggressive at first, but here is what I think. By the time you release final 1.0 version for D5, alot of people experimenting now with D6 will not be able to participate and test Ubercart. This is missed opportunity to stabilize the software with the feedback coming. I think the people running the software on D5, has pretty much got what they need and you will have hard time hearing feedback from them. I think the best next step now is get the software up and running ASAP on D6. Committing changes back to the 5.x branch is not so hard as people usually think.

Regards,
Ivan