Sencha Ext JS 5
While Touch 1.0 and Ext JS 4.0 defined some best practices for structuring your application using MVC, Sencha Ext JS 5 expands on this concept by adding optional support for the MVVM architectural pattern. It is important to note that Ext JS 5 maintains full backward compatibility with MVC-based applications. Sencha Ext JS 5 does not force you to choose between MVC and MVVM.
