Extanium 2.0 allows you to develop cross-plattform native mobile apps using the fundamentals of the Ext JS 4 API on top of Appcelerator Titanium and it's amazing Alloy application framework.
Using Extanium you can use the strong Ext JS 4 OOP implementation in your native mobile apps. Further more, the amazing new data types Ext.Map and Ext.Collection implement all the Ext.data.Store features.
Extanium is MIT licensed. It's the first full-featured Open Source implementation of the Ext JS 4 OOP API.
This is an alpha release. EXPERIMENTAL.