Maemo Tutorial and Maemo Porting Guide have been updated to contain the latest changes in Chinook, and they have now been published on out website. If you wish to start developing for maemo 4.0 now, please take a look at:
I also rearranged Maemo 4.0 How-to section to a more logical order. I hope you like it! Please send us feedback to chinook-feedback@maemo.org.
Terje