It seems that GWT is a very popular API in UI development currently.
This is just a show in search term regarding the 4 UI API language. Base on the data, OpenLaszlo does not show a good adaption by developer and it is on a decline.
I do have some experience in OpenLaszlo vs GWT
- Debugging OpenLaszlo application is really a pain. No step debugging provided
- Comparing to OpenLaszlo, GWT is a winner here. It has the best developer companion (Step Debugging).
- Also, if you are a Java and Eclipse inclined developer, you will love GWT environment.