Well they removed Hosted mode in place of
testing in regular web browser (finally!) but I've since lost the ability to test, now getting the error in the browser:
"GWT module '....' needs to be (re)compiled, please run a compile or use the Compile/Browse button in hosted mode"
Update: All fixed now, just had to right-click on the project and go to the Google menu to compile it. Would have thought it compiled automatically with hosted mode gone but I guess not.