More sources doesn't mean the numbers are accurate. The court documents are some of the first verifiable sales numbers I've seen for either side. It's showing that Apple was indeed telling the truth about their sales numbers (as required by their SEC filings, but still could hide the iPod Touch a bit), and that numbers for Samsung, the largest Android vendor are off by quite a bit.
Gartner for Q1 2012 is reporting Samsung Android sales were ~32.4 million. A difference of 8.4 million from IDC, and a Worldwide/US split of 92.3%/7.7%. Again the split seems off compared to other verifiable numbers.
The Strategy Analytics post you linked to earlier doesn't break out Android sales, just overall smartphone sales. I can't find good numbers from them on Q1 2012 in the US without jumping a $7,000 paywall.
I agree with you on the real competition part. It is good and is bringing improvements across the board. USA vs some other company I don't personally care much about, as long as there are strong enough companies around to create jobs in my neighborhood. Both Samsung and Apple happen to be in the neighborhood here.
The concern for me is with false information turning into reality. This is the tech industries speculation market. Why does it personally interest me? Just a few months ago I had to say farewell to 118 full time coworkers, and additional contractors due to false speculative numbers. Expanding out of tech, we have speculation driving prices on so many commodities with no basis in reality. But the speculation does do real harm when it drives prices up, and pushes more money out of other areas of the economy.
I know the world is not a very honest place. What frustrates me though is that as we continue into this information age powered by the computing devices in front of us, the false information still thrives. Possibly more so now then in the past. Even here, yourself and others just dismiss the false info as "Bruno bait".
I'm taking much more notice, to at least try and find a job in a company that has people who properly understand the market they are in. By doing the deeper research on these numbers, I can ask better questions in an interview before considering their offer.