Call Apple. I was able to purchase a disc with an older version of OSX for a white macbook for about $15. I imagine you could order a flash drive with Yosemite.
On point: http://stratechery.com/2014/smartphone-truths-samsungs-inevitable-decline/
If you don't become an Apple, you eventually become a Dell and no one wants to be a Dell.
FYI you can watch the wake up call live here: http://www.space.com/17933-nasa-television-webcasts-live-space-tv.html
Schedule says they should be waiting for signal from 12:30 AM - 1:30 PM (Eastern).