If you work on Mac OS X 10.5 and use iSync, you will see that whenever you start an iSync session, some or all synchronized applications will be hidden. The only way to get them back to your Desktop is to activate and then again deactivate Spaces (i.e if you have Spaces deactivated by default).
You can activate a small Spaces icon in your menu bar to access the Spaces preference pane more easily, yet, every sync requires too many mouse clicks to do it that way.
I use a small AppleScript, which looks like this instead:
tell application "System Events" to tell expose preferences to tell spaces preferences
set spaces enabled to true
set spaces enabled to false
end tell
Save this script, place it in your Dock, use Quicksilver to invoke it, or save it in your AppleScript Menulet.
Now it’s just one click to get back to your synced apps.