Ask HN: Will Facebook and/or Apple join the cloud computing race?

Amazon, Microsoft and Google are all selling cloud computing platforms, which are a massive revenue driver with vendor lock-in and margins that would have any investor salivating. IMO there is an elephant in the room — or rather, a lack of two elephants in the room. Where are Apple and Facebook in the cloud computing race? Does HN think either of these companies will attempt to offer cloud compute at any point in the future?