Jay Garcia is speaking at DevIgnition at Oracle HQ on Creating Mobile Apps with Sencha Touch. He is the author of ExtJS in Action (which he says is finally in print!). He is not a Sencha employee, but he is a contributor.
[Liveblogging during the presentation]
If you aren't familiar with Sencha, you may know them better as ExtJS. Their offerings have expanded, and their name has changed. ExtJS was born out of YUI.
