InboundWriter is one of those stunning, trick applications you’re surprised even exists. It’s a web-based text editor that allows you to see — via a big speedometer-like gauge — how well you’ve tuned your document to be search-engine friendly (otherwise known as search-engine optimization, or SEO), and then gives you the tools to tweak your document’s SEO to perfection. And yes, it’s free — so long as you don’t go over eight documents per month.
But since its launch early this year in May of last year, InboundWriter has been running on Flash, making it annoyingly unavailable on the iPad. But that’s about to change; it’s been re-worked from the ground up to run on HTML5, and has even had its aspect ratio optimized for the iPad.