I am active on different social networks - LinkedIn, XING, Facebook and others. So when I heard the announcement that Google would offer an interface to all these platforms I was excited. Got me a developer key and poked around a little. Good distraction from the rain and snow outside.
Unfortunately, my excitement was soon replaced by disappointment. OpenSocial is buggy as hell - even the tutorials don't work properly. But that can and will be ironed out.
The real kicker is that OpenSocial doesn't do anything for the user - it's just a tool for developers to spread all these obnoxious applicaitons/gadgets across different platforms.
Here's a little presentation to explain and demystify this a little:
Cheers, Matthias