In reply to Nico.

Facebook is big but not that big.
Apple's Services devision is bigger than Facebook.

Software Patent litigation is BIG BUSINESS. And it increases the cost to everyone. Even universities are into the Software Patent Troll act. Just look at how Wisconsin U won a half a billion dollar software patent battle with Apple. These are HUGE WINS.

Software patents are completely opposite the ideals of open source software. Just look at how MP4 and its patent encumbered children inhibit video work online.

So I don't fault Facebook for trying to protect itself from patent litigation. Even open source software is not protected from patent litigation.