Rudi Ahlers wrote:
Unless you absolutely have to have groupware functionality + shared tasks, shared calender, etc on your blackberry, and want to pay extra for PUSH, it's not necessary to go this route.
Google has a BB app that will sync contacts and calendars to their servers. There are serveral SyncML clients, if my memory serves, that will sync to open source products.
Simply setup an IMAP server, and set your blackberry to connect to the IMAP server, This is how I do mine, and it work very well.
Further, BB now supports IDLE, which produces "push" type (instant) email on IMAP. Cyrus supports IDLE. I am not sure about the others.