Didn't the ROTJ novelization have the Emperor make a reference to Yoda? I thought I heard that somewhere...

As for Owen being Obi-Wan's brother, I could actually accept that almost, now that I think about it. Owen never refers to Anakin as his brother, or anything like that...Owen and Beru always refer to Anakin only as Luke's father, not in any relation to them. "Uncle" could simply be an honorary title...that's pretty common.

Huh, now my whole prequel pitch might need to be changed around...but I like the idea of seeing a pre-Empire pre-end-of-the-Clone-Wars Tatooine that's a lot nicer than the dump we see in ANH.