Are there any wallet that stands out from a security perspective?
Here's the list of eWallet providers.
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http://en.bitcoin.it/wiki/Category:EWalletsMost exchanges can be used as EWallets, though there are reasons why not to do so. Those with multi-factor authentication (e.g., Mt. Gox's YubiKey, TradeHill's DuoSecurity and Camp BX's SMS Text) would be among the most secure against identity theft.
One EWallet WalletBit uses what they describe as "secure card" as the method to help prevent unauthorized spend transactions.
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http://en.bitcoin.it/wiki/WalletBit