You can monitor background processing that might be occurring in Photosmith through the Activity Center messages, which are located just above the Catalog/Tagging/Export/Dashboard icons in the bottom left-hand corner of Photosmith.
Background activities include sync with Lightroom, importing photos from FTP and Eye-Fi, and exporting to Internet services like Dropbox and Facebook.
When there is no background activity, the Activity Center status indicator isn’t shown.
Activity Center is only shown in Grid View and Loupe View modes, and is never displayed in Fullscreen View.
Tapping on the Activity Center row displays more information about the activity, such as Lightroom sync.