I'm struggling with the same issue so I thought I'd add my 2c...
While Goodlink is probably a wonderful product in its target market (the enterprise), my company and plenty of others are not about to bring in an enterprise solution for a few mobile workers who want to keep their calendars in sync.
What I need are two features:
1) Over-the-air sync to Exchange 2000 or 2003 via OWA (Outlook Web Access, a.k.a. Microsoft's implementation of WebDAV on Exchange)
2) Sync with the *native* Palm PIM databases (there are just too many useful 3rd party apps that look at them for data - like Agendus)
There are two companies working on this right now; Nextworks (Nexchange) and JP Mobile (Surewave Mobile Connect), but neither seems ready for primetime (at least not yet). I've tried using both and have gotten neither to work (for various reasons perhaps better left to a different thread).
I can't believe there isn't enough market demand crying out for just such a solution to allow a company to produce and market a viable product. There is a model for this: Snerdware (
www.snerdware.com) makes a Macintosh product to sync the native Mac PIM apps with Exchange via OWA. I use it and it works beautifully... I can't imagine this can't be done on the Treo as well. Making OTA sync and push e-mail available to the many, many mobile workers who can't get them any other way would make the Treo an unbeatable mobile office hub. ChatterEmail gets me half way there - I'm still looking for the other half.
Pete