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Originally Posted by Andreas67 View Post
When I sync with MobileMe: Will always the whole data file transfer to or from the iPhone or iPad when I start OF or make a new entry? How high is the volume of data transfer to or from MobileMe?
As Curt mentioned, the very first sync requires transferring the entire database to your device. Most of the time, it only transfers one or more small files (a few hundred bytes each, typically) representing the changes made since the last sync, not the entire database. Somewhat like an incremental backup... Occasionally, the entire database will be rewritten back to the server during the sync process to compact it, and depending on the speed of your network uplink and the overall size of your database this may take more than a few seconds, but the application still functions while this happens.