Demo of open source Java based very powerful FIX market simulator
Why backtest when you have this powerful simulator to test your strategies in real time against simulated banks, traders, and even market makers?
Do note that there is other project as well called FIX Pusher: http://sourceforge.net/projects/fixpusher/?source=typ_redirect
NOTE I now post my TRADING ALERTS into my personal FACEBOOK ACCOUNT and TWITTER. Don't worry as I don't post stupid cat videos or what I eat!