Austin Modine :

Adobe Air is getting an open source rival with Appcelerator Titanium, a new platform designed to let web developers build installable desktop and mobile applications using HTML, CSS, and JavaScript.
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the Appcelerator itself claims "The most significant difference between Titanium and Adobe AIR is that Titanium is open source and Adobe AIR is not."
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Appcelerator said Titanium is powered by open source products, WebKit, Chromium, Gears, GTK+, Jquery, Appcelerator SDK, NSIS, and Ruby.

Finalement une alternative OpenSource (licence Apache) à Adobe AIR : Appcelerator Titanium (preview release).
Titanium est une plate-forme conçue pour développer des applications Desktop et mobiles à partir de HTML, CSS et JavaScript.
Les technologies sur lesquelles repose Titanium sont WebKit, Chromium, Gears, GTK+, JQuery, Appcelerator SDK, NSIS et Ruby.

Titanium puts open source mettle against Adobe AIR
Appcelerator Titanium
Demos