It's worth your time because it pays to get involved. Devcoin aims to help fund open source projects - software, hardware, writing, art, music, film, marketing and other ideas you may have - and all not necessarily related only to devcoin.

By incentivising and rewarding time and effort spent working it also supports real development and action today, rather than just the hope of an early mover payback tomorrow, so it's sustainable. It’s merge-mined with bitcoin, so getting involved is optimising for maximum earnings.

There’s a growing community of people already regularly contributing to the growth and economy, people using devcoins for payment and receipt, projects backed by existing devcoin loans across the development and gaming community, and so it’s not going away.

I think it's a great concept with legs. Take a look: Background on Devcoin