What does the 1st Line of your Email Newsletter Say to iPhone Users?

Everyone knows your Subject Line is important in composing an email. But for iPhone users so are the first couple of lines of each email. I captured this screen with a couple of different marketing emails. Note most squander that free real estate with "Click to View Online" messages. Best Buy on the bottom does an okay job but even they waste a line.

Think about the 1st line of your email newsletter and how it appears to iPhone users.