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I've found some cool graphical effects on the site so far, like this
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Ext JS is now Sencha
Ext JS has recently rebranded to Sencha. They've also combined forces
with jQTouch and Raphaël, and these libraries will remain MIT licensed:
We're setting up a foundation called Sencha Labs that will hold the
copyright and trademarks for all the non-commercial projects a
ffiliated with Sencha. Our license of choice for these projects is,
and will continue to be, the MIT license.
The move is interesting because all three of these projects are already
well-known and respected. The combined framework is being marketed as Sencha Touch, and was misinterpreted by some well-known Apple bloggers
as a way of doing native app development (rather than simply another
useful mobile web framework).