Presented by the Appcelerator team, Titanium is a young platform for building desktop applications. This platform is actually open source, and the preview release that can be procured by clicking on the link that is displayed at the bottom of this page already has a rich set of features in place.
For example, application scripts written both in Ruby and in Python are accounted for, and there is also built-in database support and desktop notifications that can be counted upon.
But the most remarkable feature is that apps can be created using both the provided Appcelerator SDK platform (the one presented by the company), or any other third-party Ajax library of framework.
Of course, whether or not such a platform will eventually be able to rival Adobe AIR remains moot. If you want to give it a try you can do it for free, and draw your very own conclusions. At any rate, it is worth a look if you are a seasoned developer or someone who has a basic knowledge and wants to expand and capitalize on it.
TitaniumApp.com In Their Own Words
“Appcelerator Titanium is an open source platform for building rich desktop applications using web technologies like HTML, CSS, Javascript as well as Flash and Silverlight.”
Why TitaniumApp.com It Might Be A Killer
This platform provides a cost-free solution for the creation and development of apps, and one that is incredibly flexible as well.
Some Questions About TitaniumApp.com
Will this platform always be available for free? 
