Let's say we create a website that embends the desktops of all participants and their projects in a grid thus transporting some of this "woah, they're doing something, i should too" feeling. With regard to projects there are many possible ways to do it. One idea would be to make it a nonprofit hackathon where organizations could apply and teams or individual hackers could pick what they'd like (similar to random hacks of kindness), or just let startups do their own things.
But first I'd like to know if the online hackathon idea is even remotely interesting. Would you share (parts of) your desktop live for such an event? Do you think it's possible to create a momentum this way?