Example code of Forging Titanium Ep002 is crashing on iPhone SDK5.1 and Titanium 2.1 on the "home button" after opening more than 3 windows.
To add to Anthony, but hopefully steal the answer win from him, I'll point you to source code from one of the fellow Titans, Vui Nguyen, who has refactored that code. She has a write up on her site (http://sunfishempire.wordpress.com/2012/06/02/complex-navigation-titanium-part1/)
Since you didn't really ask a question, let me just say that the code for episode 2 is over a year old, I'm sure that it could be updated for newer SDKs and current coding practices. Which is exactly why the code is made readily available for everyone to access. The code sample is relatively small, so refactoring it probably wouldn't take too long.
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