Unfortunately not, the last response I got was that it had been escalated internally and we were awaiting a response of either "it's a problem, we'll fix it" or "it's by design".
(
runs for cover as members read the words "it's by design"!)
If i don't hear anything today i'll chase them which means I would get a response Thursday night.
My thoughts to this would be that there are quite a few docs from RIM which detail features over WiFi using BIS and BES and i'm sure I have read that they provide this service to BIS users. Anyhow, they haven't said this yet so everybody keep calm!!