While I agree that there are limitations with App Engine, I disagree with your two examples; not only are these possible, I think they have a nice solution on A

While I agree that there are limitations with App Engine, I disagree with your two examples; not only are these possible, I think they have a nice solution on App Engine. 1. Wildcard subdomains and multi-tenancy seem to be a nice solution to "subdomains for each user". 2. Unless by "non-www. URLs" you mean naked domains, that is also possible; both explicitly defined and with wildcard subdomains. Maybe I'm misinterpreting you though.