Version 1.20.8 is available for download. For the last couple of days the MobileMe server has been acting quite erratically - every now and then it  would return a "Can't connect to application instance" error in response to legitimate requests, and that has been causing issues with using the plug-in. In this update I implemented a workaround for the error. For a complete list of changes in this update, visit the MobileMe Plugin’s Home Page.