HTML5 was already very present at Devoxx this year. As was the Android duo Chet Haase and Romain Guy. Also a lot sessions about the cloud. Maybe even too much to my liking. First time I noticed people were talking that clearly weren't used to these kind of conventions. Think of smaller projects and beta's (jhome) and even just bloggers (diabolical dev, recode.nl). Something different than all the big names.
The home automation sessions were really crowded!!