[reflectiv]

Have you ever used ExtJS? ...I have had the displeasure of developing with it at a large financial institution...it is madness...everything is a JSON object and what ends up happening is a mixing of concerns...putting logic, and layout in the same place.

ExtJS didn't lead shit...there is a reason hardly anyone uses it.

GWT I am not personally familiar with, but if it is at all like ExtJS I want to stay AWAY as much as possible.

[erichurkman]

> ExtJS didn't lead shit...there is a reason hardly anyone uses it.

One major reason is it's just so freaking large and unruly to do anything simple. It's one of the few frameworks I've used that even after moderate use, I still had to keep the docs open on one screen even during routine development. The error messages weren't very helpful, either.

[twistedpair]

I did use it for a large project over about 14 months. You do need those docs open and since Sencha's doc servers were always overwhelmed, they suggested you run your own locally ;)