I met Jyri while volunteering at a tech conference last year. He is one of the most genuine and compassionate people that I have met in my journey to become a successful entrepreneur. I wish him the best of luck, and I know he's doing great things at Google.
And as for Jaiku. I think this is the perfect example of why Google is f-ing awesome. They're giving away code that basically details how to build an incredibly elaborate project for free. This knowledge can help thousands of programmers get started programming and that's really just ultimately better for all of us.