;-)
Depends on what exactly you mean... I just started using my new Nokia E61 (amazing device, btw.) and I use it in two ways - I'll sync my calendar using the Nokia Sync Tools against Outlook - email I receive via IMAP over-the-air - both work great and due to the support of IMAP-IDLE by both the device and our IMAP server, new eMail comes in almost immediately in a push-type fashion.
Now, obviously, it would be more interesting going forward to also allow for Calendar synchronisation to occur over the air; the device I'm using - just like your device - is a Symbian-based device that would allow to do so using a SyncML interface. Scalix does not offer SyncML yet - but obviously as we're very interested in Open Standards, this is something we look into and approach from multiple sides - stay tuned for some updates soon.
In a certain space we can already offer wireless synchronisation of email, calendaring and contact data; we have a partnership with Notify Corporation (
www.notifycorp.com) whose product NotifyLink for Scalix will allow you to do just that with Windows Mobile, Palm and Blackberry devices; they are also looking at providing a SyncML or Symbian client, so this is one very possible path to a solution here.
Another trend - looking at gmail Mobile - seems to be a microbrowser-based online solution on mobile devices; obviously something we aren't ignoring either.
As said, wide-open space and huge challenges ahead.... some people might call this interesting times. ;-)
Hope this helps, if you want to discuss any of this in more detail, please contact me directly, apart from that - stay tuned! :-)
Florian.