Nice single serving site:

To this day, does not have Over-the-Air syncing.OmniFocus for iPhone was released on July 10, 2008. From day one, it featured some form of Over-the-Air syncing.Customers of CulturedCode have waited over two years for Over-the-Air syncing. The company says they are working on it, but every day that goes by without the feature is another day when switching to OmniFocus looks all the more enticing.

Come to the dark side (aka The OTA syncing side).