In the same way that Google Apps (and Mac OS X) have enabled people to run without IT departments, Google App Engine is going to let them go big without an ops department. With the current imposed limits I can't prove this theory at Mochi Media, since everything we do is beyond the scale of their current quotas, but maybe I'll allocate some of my "infinite spare time" to ditch this Wordpress crap and try it out for my blog while they sort that out :)from __future__ import * » Google App Engine - Changes Everything
The minus is that this project is actually probably pretty horrible for open source. Yahoo and the rest of the Hadoop team have their work cut out in making that stack competitive with this. If they don't, Google is going to own scale for a while. While MySQL and PostgreSQL still have some years left in them as people learn how to write scalable apps, I can't see that model lasting very long now that you don't have to be in Google's employ to use better solutions to the data problem.
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