Newbie in google app engine

[Tarek Assem]

Hey community..

I have a task to do a mobile cloud computing application so after searching a lot i figured out that the best service to host my back-end and database is "Google App Engine"
I decided to use JSP and servlets since am a bit familiar with Java....

To sum up: am looking for an efficient tutorial rather than the documentation i have found here.

Thank you in advance