In a splurge of activity over at Nokia Beta Labs in the last day or so, here's a roundup of news: Nokia Email has graduated from Beta Labs to become Nokia Messaging, though the full announced functionality (e.g. IM) still isn't in place. Nokia Communication Center 2.0 has graduated and is now part of the latest PC Suite (7.1.18). Finally, Enhanced Calculator has been 'archived' and will at some point be reworked and brought into devices - meanwhile you can still grab it as-is if you like.
For Nokia Messaging (née Email), improvements seen in the new, official version include: support for up to ten email addresses, new subfolders for IMAP email accounts and support for Google Apps-hosted email and other email addresses. The user interface and performance have also been improved. Nokia Messaging also now supports more S60 devices.
Nokia Messaging is still free for users whilst it's in the trial period, but will ultimately be available through operator plans. Of which more later.