[axiom]

If you're interested in more gory details feel free to email me at mike at tophatmonocle dot com.

For what it's worth, we're an angel funded startup with some extremely bright hackers and we were signing praises about the App Engine until about 3 months in, when we started hitting it's various brick walls.

Oh, and take a look at: http://code.google.com/status/appengine

Click through the various items with green checkmarks to see the actual data that GAE considers "no significant issues." Including fun stuff like 80% datastore error rates.

[gmosx]

There might be some problems but it's great to know that Google system administrators (instead of me) are taking care of it. When I hosted my application on EC2 twice I almost lost all my files due to hardware problems. I had to spend all night preparing a new server, not funny. There are no servers to fail in App Engine, I love that!