Wayne Dixon over at Macgasm, about how app data will be backed up with the Mac App Store:

So this leads me to wondering something: how does the application’s data get backed up? Right now within the iOS App Store, your data is backed up when you sync your iOS device and this information is then backed up again when you backup your computer (you do backup your computer, right?). But if your application data is just stored locally and you do have to do a re-install of your computer, even though you are able to download the software itself again, your data may not be easily placed in the correct location, even with backups.

When Apple announced the iOS-like model for the desktop we didn’t really wonder much about how the backup model was going to be carried over to the Mac. Is it going to be carried over at all? On the current version of OS X (and on previous iterations as well) each app stores its data in various folders on the hard disk. Usually it’s the “Application Support” folder inside a user’s library, but preferences, caches and databases may be stored somewhere else. Not to mention the possibility to manually select a different destination for the main database in some applications, think of 1Password, Candybar and DEVONthink. Is the Mac App Store going to change this? Read more