OK, my take on Yoda and dagobah.

I don't believe we ever need to show Yoda landing on dagobah. That way it is a mystery. I mean, at the end of ANH are we shown rebels arriving on Hoth? No. At the end of ESB are we shown Luke arriving on Tatooine? No. Why bother? Everything that needs explaining is explained it each movie. We need some mystery between each movie!

However, I DO believe having Yoda and Bail hanging out there, then the twins being born there makes perfect sense. Luke's line "There's something familar about this place" would finally make sense! And I feel it should go *something* like this:

http://www.youtube.com/user/SSWR1#p/u/18/1uk8pB0nnu0

After this scene we really don't have to explain where Yoda goes...nor Obi-Wan! :D