I don't know if this has been discussed or not, but this is a post 2.0 idea, probably whenever soup views get implemented. This feature would add in a dynamic menu of the last five (?) play lists you have selected. I could use this when my finger slips trying to insert a song to rebuild my list again from scratch. There are times I also get in the mood to hear one album a lot (I know, avoiding hearing one album a lot is why we got an Empeg!
I would use this mostly right after I buy an album and haven’t heard it much yet) so I could just pick it off my recently played list rather than spend time jumping around my albums list (it's getting bigger all the time).
Anyway, just an idea.
-Jeff