On one level it's quite cool to see human intelligence pipelined as a service, but on another I worry that this may represent a new form of slavery with the turkers being paid at such a low level that other social problems may arise as a consequence.
While I'm sympathetic to this worry about crowdsourcing (which Jonathan Zittrain has been writing and speaking about for years), I'm still optimistic that the architecture of ecosystems like Mechanical Turk can protect people from exploitation. And hopefully the market will set fair compensation per task (although I don't think it has yet).
