An excellent presentation by about Android Development. It is over an hour long and he covers many issues about Android Developer tools. The lecture is geared towards people already experienced with the development system but it would be a great 'coming attractions video' for people just starting out. The presenter was very knowledgeable and presented the topics very clearly. I picked up several good tips and techniques from the lecture. The lecture was a presentation distributed by +Google Developers and is a Google+ circle that is very valuable.
A link to the YouTube video is here.