What is the performance expectations for Ext GWT 3.0? Better or the same as 2.0? The architecture is vastly different (no lazy rendering, heavy use of generators, cell widgets, etc.), so I'm not sure what to expect.
We are just starting the transition now, but we are focusing on new development rather than porting existing code. I'm glad that there is some end-user benefits for the switch. Feature-wise GXT 3 doesn't offer much new, and requires large code changes and retraining for developers.
That's right, but it's really worth the effort.
I'm quite enthusiatic especially because of the good performance (as this has been a great issue in all our projects).
Developing new can be a good idea, as the code changes are really very much.