Hi, As a developer of Open Source software for trading systems I was wondering if anyone would be interested in testing some back testing applications. They are very much beta stage although I have been using it for some time trading my own account with success. It is not black-box and uses standard configurable TA parameters with real-time market data, and web deployed. Critique/suggestions more than welcome. Also interested in collaboration with traders and developers, particularly in the area of pairs trading and spread betting. Some quick demo clips:- http://www.acecharts.com/servlets-examples/flash_clips/turtle_strat/turtle_strat.html http://www.acecharts.com/servlets-examples/flash_clips/MA_crossover/MA_crossover.html