On the 3rd of September 2011, the attached presentation was shown at the Drupal Commerce Camp in Luzern, with co-host Sascha Grossenbacher.
"Rewarding user participation with points & achievements"
It explains the implementation of a key client web project this year for Swisscom Innovations:
* Implementation: Standard and custom modules
* Userpoints & Drupal 7 (by Sascha)
* Appendix: Code Samples, DB tables
See also the previous blog post on sclabs.