I admit I am still exploring this software and so may be able to answer my own questions in time... but just so I'm clear: are you saying that RB can create Applescript lists (like the one described above) in the RB menu, and navigate them there? That would be absolutely amazing - it would be far and away the most useful and customizable media browsing solution out there.

(For background purposes, I have a media center run entirely on Applecript... it's not as pretty as RB or FrontRow, but it's much more flexible. I've been looking at replacing it with a prettier piece of software, like FrontRow or RB or Mira, but none has been perfect. If the above paragraph is accurate then RB becomes the clear winner. I have to look into it.)