I’m excited by the content of these slides from the Rails GIS Hacks talk given on Monday at RailsConf Europe. Shoaib Burq and Kashif Rasul from Nomad Labs did an awesome job with their slides. I would love to see/hear their talk if anyone recorded it.
Update: Shoaib Burq has posted the very professional tutorial notes online. This is the kind of PDF I would pay money for. Thanks for sharing it with us Shoaib!