I am 110% locked into GAE with a start up in the legal services space. And I couldn't be happier. For needs that cannot be satisfied by GAE, our app spins EC2 instances up and down as required (from GAE).
For me, the numerous benefits of the platform outweigh the lock-in risk by a large margin.
For me, the numerous benefits of the platform outweigh the lock-in risk by a large margin.