GOOGLE’S RECENTLY UNVEILED OpenSocial, “a common set of APIs for social applications across multiple websites”, has been adopted rapidly by social networks such as Engage.com, Friendster, hi5, Hyves, imeem, LinkedIn, MySpace, Ning, Oracle, orkut, Plaxo, Salesforce.com, Six Apart, Tianji, Viadeo, and XING.Here’s a summary of a post with a similar title …