From GWT-EXT to SmartGWT
To answer my own problem I decided to Google around my whole day to find a legitimate reason why I have to stay or move on. I finally decided to move on to SmartGWT and migrate most of my stuff on it pretty soon.
Here are the following solid reasons.
1. The GWT-EXT members are posting migration steps to SmartGWT and even recomend new developers who are starting Ajax to use SmartGWT. I think this is a solid justification.
2. Even though SmartGWT user interface sucks a little bit the team have assembled an elite members of designer to make the new and improve widgets more professional. Can't wait to see their new interface.
3. If I stay with GWT-EXT eventualy Google will upgrade their product and without the support of EXT-GWT things will be a mess. I don't consider using the native GWT since it lack's the richness that GWT-EXT and SmartGWT use. I can't hire developers to those stuff and it doesn't make sense to reinvent the wheel on my part.
That's it! Bye bye GWT-EXT. Hello SmartGWT.