Google is upping the ante on the iPhone here, though, by adding cloud-based data backup for Android applications How many apps will actually support this featu

Google is upping the ante on the iPhone here, though, by adding cloud-based data backup for Android applications How many apps will actually support this feature? It doesn't sound like it's an OS level feature transparent to third party apps. Am I going to have to keep track of which apps support it and which don't?