I'd also like to see a credit card (or even PayPal account) attached to an OpenID account so one can also use it to pay for things online with an email address.

I'd also like to see a credit card (or even PayPal account) attached to an OpenID account so one can also use it to pay for things online with an email address. An email confirmation would occur after each purchase. Thus OpenID becomes a substitute for a CC's number and its other details, which are lodged with the OpenID provider. At present, one can't even sign for an online purchase or show a confirming ID or enter a PIN.