Google's New Patents
groklaw.net
groklaw.net
If someone in the pool decided to sue someone outside the pool over a patent, the latter could just join the pool and avoid the lawsuit (since now they own the patent as well). This would probably lead to an equilibrium point where everyone is in the pool, and thus make patents meaningless.
The "pool members" innovate and get patents to restrict "you" from exploiting their innovation.
Can you oppose one of these actions but not the other?
What are they suing you over, if your work is truly "innovative"?
Patent pools aren't new - the MPEG LA patent pool (http://www.mpegla.com/main/default.aspx) is one that has gained a lot of attention over the last few years, and they are actively seeking others. MPEG LA is slightly different to OIN because it seeks to raise money for companies in the pool by licencing the patents.