Hi.
I'd also like to second Florian's response that we've been using a NotifyLink server with 11 with no problem, have multiple clients (Blackberry & Windows Mobile) sync'ing without a problem.
The one thing that I would like to mention is that according my rep. there, NotifyLink is developing a Linux version of their server and should begin beta testing shortly. So far, it's the *only* Windows server in our organization, and I can't wait to replace it with Linux.
Overall, NotifyLink is definitely a great solution that's relatively inexpensive when compared to BES.
-Mike
