Its already been talked about, although it is conceivable that the record of that discussion vanished as a result of the "crash of 2007." For the moment let's give these guys a bit of breathing room; the beta version of UC has not even been released, and drupal 6.0 is, as you note in beta version. Indeed, drupal management indicates that it should not be used for production.

I am confident that UC will be ported in good time; that already has been decided. Meantime, patience, please. Thanks.