> nobody seems to have developed a Shamir's secret sharing approach to cold wallets I mean, what is there to develop? Take the wallet's private key, and run it

> nobody seems to have developed a Shamir's secret sharing approach to cold wallets I mean, what is there to develop? Take the wallet's private key, and run it through your favorite implementation. I'm not really sure what a bitcoin specific implementation would do! Just autoload it into your specific bitcoin client for you?