I happily noticed that SonyEricsson has started to publish guidelines and tutorials on their developers site.
Recent posts include tutorials about music (Part 1 and Part 2) and videos [PDF], Flash and more.
Not to mention the new “Phones” section in which you can go see lists of devices, pictures, features.
Would be great to have something more in detail about the technical specifications of each single device, but this is already a big step ahead.
The work certainly took a few months as features and sections appeared slowly but constantly.
This is EXACTLY what you’d expect from a good developers site. Good job!