Can someone confirm that the NEO being sold here will work with U2F? The MD description says "First authentication device to comply with Universal 2nd Factor (U2F) requirements", but the product page at http://www.yubico.com/products/yubikey-hardware/yubikey-neo/yubikey-neo-u2f/ says "Yubico expects to have U2F compliant YubiKey NEOs available for the public during 2014."