Gates: Yahoo cultural differences? What differences?

Microsoft Chairman Bill Gates downplayed worries about the cultural differences between the software giant and Yahoo.

After reading News.com's Ina Fried's account of her interview with Gates and watching the video. I smell a disconnect. You can watch the video for yourself, but it's hard to envision a happy marriage here.

Memo to Bill: Yahoo sure seems to be highlighting the cultural differences. Yahoo champions Haddoop and open source. Microsoft will never go that route. Yahoo is Valley. Microsoft is Seattle. Microsoft wants to acquire Yahoo. Yahoo doesn't. I could go on, but you get the idea.

Then again what else is Bill going to say. Here's what I'd really like to hear Gates talk about. What was the analysis--the real financial nuts and bolts and roadmap projections--that led Microsoft to Yahoo. Were the opportunity costs evaluated?