Is OpenSocial really to be considered open source?

Excerpt from Read/WriteWeb entitled – OpenSocial: Three Big Concerns

OpenSocial is a hugely ambitious project that would tie together Google, MySpace and numerous other social networking platforms in a common environment that application publishers could publish widgets to with one set of code.There are some issues that need to be discussed about OpenSocial, however. It’s not all a bed of roses, believe it or not.

More buzz via Wired: “Google Aims to Break Open the Closed World of Social Networking” & PC Magazine: “Will OpenSocial Open Wallets for Google?“