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Re:Multisig Vault by wcoenen on Thursday October 30, 2014 @04:12AM (#8531877)
Like the Trezor[1] hardware wallet.

[1] http://www.bitcointrezor.com

Re:Multisig Vault by icebraining on Thursday October 30, 2014 @04:26AM (#8531900)
Yes, but maintaining the encrypted copy on Coinbase's servers, to ensure that losing the card doesn't mean losing the wallet.