If Microsoft keeps on saying it does and can't/won't prove anything then the allegations will die like SCOs ones. Is anybody scared of SCO now? People possibly are scared of Microsoft now but won't be in a year or two if they don't sue or make a hash of a lawsuit (like SCO).
Ian
Can Microsoft sue if they've never said specifically what code is infringing and how? There's an insane amount of patents that would need to be searched through and most OSS developers have said on record they don't look at patents because they're tedious, practically worthless for learning how to do stuff, and because you can't predict what a Judge will decide on scope and validity anyway.. I would think there's a good case to be made that Microsoft have to tell people specifically what's infringing and give us a chance to remedy the situation before they can claim damages.