Committed: Ideally, you want to close the deal when all red flags have been dealt with. In reality, most deals close while critical red flags still exist. At this point, you have provided the customer with a proposal that outlines key contractual terms. When a customer has agreed to move forward with a deal, they are “committed” (also known as “verbal commitment” or “verbal”). What remains is to work out the details of the contract, delivery and payment, all of which have the potential to“undo” the commitment. The commitment may be offered contingent upon certain terms being met.
Trulia did something very similar to with their landing page. It starts with a simple form asking for "an address" (which sounds less creepy than "your address," although that's what they mean). Below this simple form field is a bright orange button that contrasts well with the hero image behind the form, and emphasizes that the estimate will be personalized to your home.
This is one of my favorite things about LeadPages. For most people, designing a lead magnet landing page on their website is difficult because then you’d have to mess with the coding on your site and could potentially break something. LeadPages makes it mega easy. They have about a zillion different templates you can customize to create landing page opt-in forms, like this one: