MarkdownMail lets you send email that has been formatted using John Gruber's Markdown syntax. The newest version has been updated to be a universal app for iPad or iPhone/iPod touch devices. It's US$4 for new users, or a free upgrade for existing users. The new version also fixes some bugs and updates to the latest TextExpander touch SDK.
The iPhone version looked good, but knew that I wouldn't want to use it scaled up on my iPad. As soon as I saw it was available for iPad, I grabbed it. The price has increased from $2 to $4, but hey, sometimes being an early adopter pays off. Th