Portlets 2007 was held in May and was intended to be a sort of "Developers Bootcamp" we had developers of all skill levels and we worked to make sure that everyone went home with some new knowledge.
The official description:
Portlets 2007 will bring together portal programmers from around the world in a spirit of community and collaboration. Beginner to advanced portal programmers will benefit from hands-on sessions ranging from best practices to innovative solutions to emerging technologies.
I presented both alone and with a partner in the Beginner and the Intermediate Tracks, the conferece was put on by our institution.
