Tweeting Cliffhanger

That when you're writing and tweeting on the iPhone application for Tweetworks, you find a group that's all about people who walk and tweet at the same time. Unfortunately, this discovery coincides with your visit to the Grand Canyon and you become so engrossed in social media tools and items created by Mike Langford that you stroll unawares through the warning signs and over the cabling that guards the edge and plummet to the Colorado River below.