A little Flex 2 mixer for my Flex 3 cocktail?

Do you link in swfs compiled with earlier versions of Flex (Flex 2, Flex 2.0.1) into your Flex 3 applications? This includes linking in sub-applications, modules and runtime CSS swfs. Would you object to having to re-compile those linked in swfs with Flex 3? Is that a deal-breaker for you (and if so, why?). Please email this information to Flex Product Manager, Matt Chotin (mchotin AT adobe DOT com) as soon as possible since the Flex team is looking to gather requirements for this workflow as we shut down development on Flex 3.