I have very fond memories of early Google.com, and there always used to be a vivid spirit in their products that everything was so experimental and technically on the edge. That feeling has been gone for a very long time, but since Larry has come back it's been slowly returning. Call me what you want, but I feel like this is such a smart move for the founders' freedom to explore.
And the way they announced it is totally in line with the spirit. I'm sure there was a lot of technical work, and will be more, but they way it's all hidden in the back so that they can focus on the most important parts. I'm a fan.