This app saves data from parameters of POST request 

Usage: 

http://just-save-it.appspot.com/save?APP_ID=MY&name=vasia&surname=petrov 

returns statusCode = 202 if OK
returns statusCode = 400 if no APP_ID provided

To get XML summary, call:
http://just-save-it.appspot.com/xml?APP_ID=MY


To get Flex summary of saved data for your APP_ID (using GraniteDS amf endpoint):
http://just-save-it.appspot.com/stat


Thechnology stack used:
Google App engine for java hosting and persistence, 
Servlet API, Spring MVC, Spring IoC, GraniteDS Amf service, 
custom XML endpoint (XML marshalling via SimpeXML framework), 
Flex 4 client.