A new community site has sprung up dedicated to showcasing the 30,000+ apps built with Titanium! Sharry Stowell (of Learning Titanium) has posted this new community site where developers can add their applications to a categorized showcase.
To submit your application, tweet a link to your app in the store/market where it resides to TiBuilt. Sharry will process it and bring it into the fold, and your app skills will be on display for all to see. Great work Sharry!