"What DNS is not is a mapping service or a mechanism for delivering policy-based information. DNS was designed to express facts, not policies. Because it works so well and is ubiquitous, however, it's all too common for entrepreneurs to see it as a greenfield opportunity. Those of us who work to implement, enhance, and deploy DNS and to keep the global system of name servers operating will continue to find ways to keep the thing alive even with all these innovators taking their little bites out of it.
These are unhappy observations and there is no solution within reach because of the extraordinary size of the installed base. The tasks where DNS falls short, but that people nevertheless want it to be able to do, are in most cases fundamental to the current design. What will play out now will be an information war in which innovators who muscle in early enough and gain enough market share will prevent others from doing likewise—DNS lies vs. DNS security is only one example."
"Paul Vixie, Internet Systems Consortium DNS is many things to many people—perhaps too many things to too many people."
- What DNS Is Not - ACM Queue (view on Google Sidewiki)