He said this is the next big wave, but that he wasn't sure how best to invest in it. Except maybe for Twitter...which he basically admitted Union Sqaure Ventures is already selling their stake in.<p><a href="http://www.betabeat.com/2011/05/23/fred-wilson-says-usv-is-paying-25-50-more-to-enter-deals-than-in-2008/" rel="nofollow">http://www.betabeat.com/2011/05/23/fred-wilson-says-usv-is-p...</a>