As of this morning, the latest version of Foxmarks is now available from the Firefox Add-ons site (thanks, Mozilla!). We recommend that all users upgrade, as the new version fixes a number of synchronization bugs and is also compatible with the forthcoming Firefox 2. Upgrading now will smooth your transition when Firefox 2 becomes available for general use.
We're particularly curious about how well synchronization of the new microsummaries works. Please let us know of your experience (good or bad) either here or on our wiki.