Since some time, the release of Dojo is finally available.
I was skipping the 0.9 versions (still working with 0.4.3) because the thing was almost totally undocumented, so - forced to read sourcecode - I decided to wait for a stable API.
The API documentation still needs some serious improvements, but the Dojo book looks quite good to me at the first glance.
Sadly, there is not just one migration guide, but two of them…