For us GWT developers there is a project that wraps the Ext-JS library for GWT, namely GWT-EXT (GWT before Ext). The initial release was in July of 2007, and since then it encapsulates most of the functionality of Ext-JS.
Now just yesterday something happened that could undermine this project. The same team that developed Ext-JS has now released an initial beta of Ext-GWT (Ext before GWT).
This has got to be a blow to Sanjiv Jivan of the GWT-Ext project, who has undoubtedly given up a lot of his free time for the development of the library. But perhaps it does not have to mean an end for GWT-Ext. The first thing it has going for it is that there are already a lot of developers using it, who may not want to switch to an entirely different set of APIs just because it is the "official" version. Also, on taking a quick glance at Ext-GWT, I already see at least one feature that is missing, and that I can not do without.
For me, I am not sure where I stand. I think that for now I am going to stick with Sanjiv's GWT-Ext, at least until Ext-GWT comes out of beta. And then I will decide based on the stability of each, and which provides the features I need.
What do you think? Is an "official" Ext-GWT really what we needed?