Wirelessly posted (0U812: BlackBerry7210/4.0.0 Profile/MIDP-2.0 Configuration/CLDC-1.1)
Oh and the total time it took for this, for our first time and not quite know the procedure was about 2hrs from shutting down OLDBES until the time the last user (me) started getting mail again on his device. Would I have to do this again I'm pretty sure I could have it done and transferring mail again in under an hour.
For those of you wondering about performance differences... Like night and day. Typcially, on MSDE we would see maybe a 30min or so lag time during the heaviest parts of the day, and about a 2hr turnaround on reboots before it would sync up again. Today we saw no lag, regardless of the time of day, and the one restart I had to do earlier took about 20 mins at most before the last user started syncing mail again.
Like I said, the difference is like night and day and really was a minimal amount of work considering the data we shifted around.