I would need to implement custom UI for the company, I have much experience with GWT, but flat GWT is a bit poor to level visual widgets, thus I have worked on EXT GWT.
I would like to know if the community agrees with the choice of using EXTGWT (http://www.sencha.com/products/extgwt/examples/) to generate the console UI. Because for what I observed in the Guvnor component they have used EXTGWT, but as I have listened they have made a rollback to return to flat GWT.
EXTGWT license is GNU GPL v3 license. and is compatible with ASL, therefore it is feasible the use of this technology for the UI.