The Blackberry Connect software for the Nokia E61 is now available via the Nokia Business site. This means the E61 can now replace any Blackberry device while retaining the Blackberry email and calendar experience. The software adds a Blackberry Mail account to the Messaging application and allows you to receieve push email from your Blackberry server.
A version for the E60 and E70 will follow shortly. Microsoft ActiveSync Exchange software is already available from the Nokia Business site and has recently been updated to fix a few early bugs.
Software for Visto, and Good technology is due soon. and software for Seven email systems is expected in the second half of the summer.