Microsoft. Open-Source Certification. This is not an April Fools, apparently. According to various news feeds (this was brought to my attention from PCWorld, but YMMV as these stories are periodic) they will be submitting some of their "shared source" licenses to the OSI. This is genuinely fantastic news, as after years of FUDing us around, they finally admit that Open Source exists, is a good thing, non-cancerous, and something with which they want to get involved. It's also very flattering, because since they're submitting to the OSI it tells us that they acknowledge the term "Open Source" (and by its implication "Free Software") and that its definition is vested and controlled. By someone else.
But now they've built the bridge, they need to know how to cross it. There's a cultural divide that has been fostered through the years. So listen up Microsoft, this is your next step in allowing shared source to become compatible with FOSS licenses and - more importantly - its inherent ideals!