This is close to what we'd want to replace the business model of a bunch of sketchy startups.

Startups with nice "todo"/personal data apps, etc. (cases where it's silly for the user to put their data in strangers' hands for no apparent reason) could "sell" them to users. If the startup disapeared, the user could still pay for web-app hosting.

The problem with using this particular AWS offering for that purpose is that every app would cost you hourly to run and would vastly underuse the computing resources that the user is paying for. It would be great if there were a similar offering based on a programming model where many apps could be provided by a single instance, or even perform on-demand provisioning.

I think this is the future! Somebody make it happen.