Be careful, WIFi Sync has compatibility issues with the latest version of iTunes: http://wifisync.zendesk.com/entries/197886-wi-fi-sync-and-itunes-version-9-2
Seems the dev has little interest in acknowledging or dealing with it.
I guess this is whats causing my problem... I open the app, it pairs with my computer, but the sync does not start for some reason...