Mark/Space has realeased The Missing Sync for S60 phones and Macs. At $39.95 it's a bit pricey but it fills a pretty big gap for those users.
It's really too bad that Missing Sync is the only game in town these days for Mac synchronization. Their products really aren't great quality, are fairly bloated (40MB/50MB for a sync program), regularly crash, and their tech support policies sometimes make Microsoft look good. For example, they offer telephone support, but it is considered 'premium', so you have to pay to get it. You can't email them either; they only allow you to submit a ticket into their ticket system (and you have to create a username, etc. for that. ) And last time I checked, ticket/email support was only available for 90 days after you bought a product. After that, you had to pay.