Twitter just unveiled the Lead Generation Card, a new expandable tweet format which allows users to show their interest in a particular discount or offer that’s being promoted by their favorite brand. When a user expands the tweet, they’ll see a description of the offer, as well a small button underneath that will allow them to instantly send their basic contact information – name, Twitter handle and email address – to the brand or business in question. All of the information is pre-filled within the Twitter Card based on the users’ existing account settings, thereby avoiding the often tedious process of filling out an online form. As soon as the button is clicked, the information is sent securely to the account that sent out the offer. Twitter has been testing the feature already with a handfulof brands including New Relic, Full Sail and Priceline.