I love how using the term "serverless" for a backend provider immediately confuses me about the actual product. Win?
It's basically like calling a taxi a "driverless" form of transport, just because you don't do the driving.
Just reading the headline, it makes me think that they've somehow built a P2P "serverless" framework for hosting a mobile app. Which does sound intriguing to me, but it's not what they're offering.