Dean Lythgoe in the NGW List :
Research in Motion has sent the BES 4.1 SP4 for GroupWise to operations/manufacturing. They expect it to be available as soon as Thursday.
We are working very closely with our partner, RIM and we have had extensive internal rollout of this BES version. They have recently reorganized their GroupWise development team. This has probably had some impact, but overall, they are committed to their road map and plans of bringing GroupWise more in line with Exchange/Notes support. Both from a features perspective as well as from a version perspective.
Please watch RIM for this announcement!