The biggest chunk of their development team is still in Copenhagen (and the rest is scattered all over the world, with little actually happening in SF). You can

The biggest chunk of their development team is still in Copenhagen (and the rest is scattered all over the world, with little actually happening in SF). You can't beat SF/SV when it comes to funding and networking with the industry. But when it comes to actually hiring engineers, Copenhagen still offers a big pool of highly skilled people with fewer other interesting jobs to choose from. It seems the optimal strategy is to develop in Europe, but have a sales/management presence in SF, maybe even officially re-incorporating there, even if it's mostly a front.