i’ve created a free downloadable cheat sheet for add-on developers who want a quick reference guide for developing in EE 2.0. i find it very useful, especially since i’m currently developing for both 1.6 and 2.0. hopefully it’ll help other developers switching to 2.0.
its available as an EE Accessory, as a png and as a pdf at http://www.putyourlightson.net/projects/cheat_sheet