Modular phones are certainly a popular idea right now, even if they're currently failing to deliver on their promise. But there's already a suggestion about what could happen to their parts when they're no longer wanted: they could simply slide together to form a supercomputer.
Google's second developer conference for Project Ara, its futuristic modular phone initiative is happening right now in Mountain View. There's going to be a repeat of sorts in Singapore next week, but no matter where you are in the world, you can watch it on YouTube. Right now.