It's a great thought, if you are from the old school of IT. But I wonder how well the "blacklisting" of certain consumer apps is going to work out. There is a popular theme being repeated at many conferences these days, which goes something like, "if you say no, users will go around you anyway." I don't think that's going to change anytime soon, at least not until there are enterprise-grade apps that are as easy to use as the consumer versions.
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