I think it's most likely testing the waters for a real offering. It's not that weird. Many colo data centers already have policies about hosting laptops because it's already something that happens. It just isn't common and usually isn't for hosting servers.

If the battery in the laptop is still good, it comes with it's own UPS. My MBPs haven't had an ethernet port in a minute, so do you have to supply your own adapters as well??? You could fit ~15 MBPs on their edge in 9RUs. That'd be an interesting looking rack. Not quite a blade chassis. It'd be rather boring looking as there's no blinky-blinkies