MOBILE CONTENT
Creating content for mobile isn't the same as creating content for the desktop web. Acknowledging and embracing that fact is key to successful copywriting for mobile. Think about the limitations of small screens, constant distractions and low-quality mobile web connections. And don't forget to try your content out on real humans using real mobile devices. Readers on the go want bite-sized information that will serve them in that very moment. Give them what they want.
Most of the time, people are only going to read headlines or the the first couple lines of marketing content. Therefore, it's important to put the most important content up front. Don't hold back and don't rely on leading up to something big. Put the big reveal up front!
Think about how readers will browse the content. Try to avoid requiring too much clicking, but you also don't want long pages that require a lot of scrolling. The way to do this is to be concise and efficient with your words — minimize the number of pages that readers have to click through. Try to keep content on a single page, if possible. But don't cram so much onto a page that the site takes a long time to load — users will give up if they have to wait too long.
GREAT RESOURCES:
http://mashable.com/2011/06/14/optimize-mobile-marketing/