OpenAI today announced ChatGPT Wallet, a new feature that lets its Dots AI agents complete purchases on your behalf. It was built in partnership with American Express, Mastercard, and Visa, and is initially only available for ChatGPT Pro subscribers in the US.The idea is simple. You add a card to the Wallet once, then ask your dot to help you find something to buy, like a new sweater or a hotel for your next trip. When it's time to check out, you're shown the merchant, the items, the total, and the selected card, and you have to approve the transaction with a biometric check such as Face...