Just wanted to let you know that with BES 4 and one of the later service packs fixes the 4 hour address book issue. At least I believe it does. My CEO's address book is pretty much live updates as he makes changes.
W use groupwise 7.22 with BES 4.?? and it works great. It works so good that I early upgraded to a blackberry.
The only cons I have are this...
1. Only one address book can be setup to sync
2. If you have anything in your contact list before you start syncing with a BES then none of your contacts will come over to your blackberry.'
So far no major issues. Everything seems to be working great.
The Address book problem is fixed via converting the BES for GW into SOAP mode rather than API mode. API mode will cause the 4 hour delay due to programming/api limitations. Where as in SOAP, everything is transmitted over the SOAP protocol. Do a search on the forums, you'll see some users actually using this mode and praising the real time effectiveness when transitioning to the mode and not have to dealing with the 4hr contact delays again.
Hope this helps.
Mobile/PDA Support Engineer