Re: @Adair From what I've heard previously...
Dear Turtle, your ad hominem attack does you no credit. Good manners cost nothing, and help keep the discussion focussed on the matters in hand.
As for your actual points. Yes, you are quite correct on the points of fact (as far as they can be known), but there is more at stake than simply who is entitled to know what, isn't there?
Software patent law (esp. in the US, it seems), is currently a disgrace and a laughing stock that is ill serving both businesses and the consumers. Though it is doing very well for trolls, sharks, and lawyers.
While MS may well be perfectly within their rights to act as they are doing, the point is that their actions in this matter are of genuine interest to 'outside' observers (regardless of their 'rights', or lack of them, in the matter).
On the face of it we see MS acting in an oppressive manner typical of it's history in actively generating FUD in order to entrench it's monopolistic hold on the market. Whether it is entitled to act in this way is irrelevant. Whether it will be able to continue to act in this way remains to be seen.
MS is not a charity, it is a slave to the financial demands of its share holders. We may pity MS, we may resent MS' bullying hubris. We may also like to comment on what MS does because some of what they do, big as MS is, has an impact on myself and others.