I'm surprised to have not found this on FlyerTalk, let alone a press release from Song. Nonetheless, I was browsing flysong.com, and came across a button on the Deli menu linking to a website with photos and descriptions of all available meals. The website allows travelers to prepurchase their meals by credit card, entering in their particular flight and seat details. Very little info about the logistics of the program; I am assume it doesn't handle flight changes well, but it guarantees you your choice if your travel plans don't change. I'd assume surely that meals will continue to be available onboard without preordering.