Erik Hellman Erik is a frequent speaker at different DroidCon and other developer events. He currently lives in Stockholm where he works as a freelance software developer and has previously worked at Ericsson, Sony Mobile and Spotify. Erik is also the author of “Android Programming – Pushing the limits” and the co-author of the 5th edition of “Android Recipies – A problem-solution approach”. His main interest besides programming is coffee and growing chili plants.
DroidCon (most of them). JFokus, Øredev, JavaZone, JavaOne. Several different meetups. Lots of other events I can’t remember anymore. 
ErikHellman