Pretty much yay! Have you seen any development of the idea during the year that passed since you wrote the post? For the code part, there already exists GitHub, while for the marketing part - hmm, group discussions in social networks?)
We've recently touched upon the topic of open-source, security and e-wallets, so in case if it interests you, you're more than welcome to join the discussion: https://steemit.com/open-source/@guardawallets/open-source-and-wallet-security-let-s-make-it-clear .