Company Sencha (formerly known as ExtJS) has just released Sencha TouchThe first platform specifically designed to create apps for mobile devices with HTML5, CSS3 using widely capabilities and Javascript. Sencha Touch is multi-platform, which was designed to be compatible with IOS and Android, not to mention that in the future is no support for other operating systems.
Sencha is defined Touch a framework HTML5 by its creators. The reasons are all there.
