I just pushed out a new update for Chrome, version 0.5.22 (and version 0.5.18, which should quickly upgrade to 0.5.22). Changes include:
* Fix auto-sync
* Improve opening of settings dialog
* Add success and upgrade pages
* Don't fail on sync conflict
* Migrate to Google's update system
Up next is tackling some of the more tricky issues like improving initial sync speed and tracking down the memory leak!