I've also been thinking about migrating away from Ext--on the one hand there are theming issues--on the plus side, I rather like their grid widget. But, their

I've also been thinking about migrating away from Ext--on the one hand there are theming issues--on the plus side, I rather like their grid widget. But, their licensing model just seems to keep changing and that worries me enough to want to move away. For example, now it's just not possible to buy a single developer seat.