If you're in London next week and are a Bitcoin developer, come to DevCore - I am giving a talk titled "Building contracts based applications", and giving a workshop.
In fact, that's not quite true. I won't be giving a talk this time. As we're all gonna be programmers, I plan to do something a bit different. To prove to you how easy it has become to write specialised smart contract wallets, I will be writing a decentralised document timestamping app that uses OP_RETURN transactions, on stage ..... from scratch in 30 minutes. Don't think it's possible? Come see for yourself :-)