Ovi.com, and the promise of a better sync

I've been using Ovi since I got my Nokia E71x, and I have it say, it's wonderful.  Or rather, it could be.  The level of integration with the phone's contacts, calendar, to-do list, and notes is fantastic.  And the email system it provides is probably my favorite of all the ones I've tried.  The IMAP support is incredible, the webmail interface is actually decent (I loathe webmail in general, so that's quite a complement).  Even Ovi Chat is amazing, because it uses XMPP, so it can talk to any Jabber or Google Talk contacts you may have.  So what's holding it back?  The contacts, calendar, to-do, etc. are web-only.  No way to access them from a desktop application.  Use Thunderbird, Apple Mail, Outlook, Evolution, etc.?  Sorry, no contacts or calendar for you.  It effectively turns Ovi into a glorified backup service.  If it just had CalDAV and CardDAV/LDAP, it would be a great solution for all my needs.  I'd give up on Google's sad excuse for a calendar and address book in a heartbeat.  I already want to just turn my back to my Gmail account in favor of Ovi Mail, just for the superior IMAP support.  I'm debating what my next phone will be still, but if Ovi gets some CalDAV/CardDAV/LDAP love, it would be a Nokia, no contest.  If not, I guess I'll just have to keep weighing the virtues and vices of Android, webOS, Maemo, and Symbian until I come up with an answer.  Right now, I'm still hoping Nokia decides to show some initiative and get Ovi to become a true PIM solution, and not just email with a phone backup service attached.