[Official website]

Copay: Open Source HD-Multisig Bitcoin Wallet – 1.0 Released for iOS, Android, Windows Phone, Chrome, Mac OS X, Windows, and Linux

Official website: https://copay.io/

One year ago, we set out to build a bitcoin wallet secure enough for our company’s funds. After a year of beta testing and use, we’re releasing the first version of Copay...

Complete blog post: http://blog.bitpay.com/2015/06/03/copay-released.html