It's great to see some real app development happening in the pharma space. I was worried it was going to stay too novel and disconnected a tool to get any business traction.

The real problem, in my opinion, is that Google hasn't made a clear, public way for advertisers to get involved in the platform. That's one of the most innovative technical adopters and the one of the most free to spend speculative money. Especially with Google's core business, I'd have expected something more obvious.