I feel the beat for 1.1 should be an option for all current owners of a license to run 1.09 (or 1.09E). However, I think the SD team should also give us some guidence, at various points, about what they wish us to test, how to report it, etc. I have no problem with the design team saying to me. Set up the game this way, with test this set of options, check on these <fill in the blank> things.
I agree, it should be open to all via the show beta option. But it should be guided and focused at key points. They should set up a sub forum with threads dedicated to the important things they want tested and have thread specific replys,crashlogs etc in said threads. Then they should have a general misc thread for general stuff and discusion.