The nice thing (in your case) is that you don't have any legacy 3.x kixscripts to support - your starting with a clean slate - so you have a better (less-risky) opportunity then most folks to test the beta in "production". I mean - depending on what you'll be doing in your script - if the beta works today (for you) it should work tomorrow as well (famous last words )

But the other thing the risk that the beta will change prior to being finalized - in which case you'll have legacy beta scripts - oh god - my head hurts.

Shawn.