BigTable Client like toad for oracle or SQL Server Management Studio Express?
+1
A:
You can replicate an App Engine instance to MySQL using AppRocket: http://wiki.github.com/k7d/approcket/how-does-it-work
Another option that might suffice is the ability to change the datastore backend to SQLLite (for dev_appserver only ... not your production instances), then use one of the SQLLite Client GUIs
Stephen Gornick
2010-09-18 04:02:08