@Brent Alinger - not being able to recover deleted public folder will be a major problem for our upcoming deployment of Exchange 2010 as we periodically have to perform this function now in Exchange 2007.
Deploying older RUs would be an issue for us as there a couple of fixes in RU5, specifically the MAC PDF issue, that we would have to get special IUs for RU4 V2. It also sounds like this public folder restoration issue is in older RUs.
While I know you can't give an exact time frame, is there at least a plan for an IU regarding this issue so that we don't have to wait a month or so for the next RU (assuming it makes it into RU6)? The not knowing and playing the "hurry up and wait" game is a little frustrating for us end users who have project deployment timelines we have to meet.