Very good article on Google Web Toolkit - pros and cons
Just saw this article on IBM developerWorks - a very good article on the Google Web Toolkit - gives a small tutorial and talks some about its pros and cons.
Interestingly, apart from mentioning a few cons (not just pros), it also has a link (see the Resources section of the article) to a blog post by a blogger who thinks that the GWT and similar approaches - of eschewing JavaScript by allowing the developer to write in another language and then translating that to JavaScript - are not good, and giving reasons why he (that blogger) thinks so.