I like to work with data saved in one GAE application in other GAE applications. Basically share the datastore between multiple web applications in Google App Engine (Pytho
No, a datastore can only be accessed by one application (but that app can serve up multiple sites).
If you want Google to allow multiple applications to directly access the same datastore then you should star this issue: http://code.google.com/p/googleappengine/issues/detail?id=1300
Unfortunately the way this issue is written is a bit ambiguous, but I take it to mean 'multiple applications' rather then 'multiple accounts'.