Next step is Font, Text and Spritesheet. Then I'll inspect Clock, Power and MessageBox and in the end I'll inspect Audio. I think the most breaking changes will happen here, because I'll use this time SDL_Audio instead of OpenAL.
Font, Text, Clock (renamed to StopWatch) and Power (renamed to Battery) were also ported. The Audio package also. Spritesheet should be redundant now, because Sprite has now a clipRect, to support the Spritesheet behaviour.
What is left: add missing comments / complete comments and renew the documentation. After that I will update the website.
We are moving forward! :)