There’s a few things that annoy me, the widgets in GWT don’t easily allow you set an id on them, which means when it comes to testing, Selenium etc. has difficulty. So I’ve started a project called Geez that aims to add a bit more of a fluent way of building GWT apps… find it here:
Please note, they are very young, and I haven’t spent lots of time on them yet – so don’t whinge too much! That said, I’m more than happy for people to contribute ideas, code, tea – anything, just ping me.