Good secrets are hard to keep, and it looks like at least one of Microsoft's trusted partners has spilled the beans on the company's big announce for Monday. SanDisk used the occasion -- the unannounced occasion, that is -- to let some members of the press know today that Microsoft's Pink devices will be compatible with its line of microSD cards. That seems like a pretty lame way to ride on the coattails of a big hardware launch, but then again, when your most exciting products are nondescript pieces of plastic half the size of a postage stamp, how else are you going to make the news?