Some of you might already have the developer preview, but I don't, so I am excited about the update. I'm looking forward to having the OS redesigned with Material Design and to seeing improvements in battery life with Project Volta. I've already seen some apps updated with Material Design principles and have been using the Android L keyboard, and I like the new look. It'll be fun to have the whole look come together, complete with smooth animations. Battery life is also important, so I'm looking forward to seeing how Android L improves it. What are you looking forward to, or if you already have Android L, what feature do you like best?