The Dash Express GPS's API opened up about six weeks ago, and so far Dash says there've been dozens of apps developed since then, most of them in the truly useful category, like weather or speed traps. And then there's a Twitter client. Yes, the Dash will now tweet your exact location to everyone following you, along with a link to the address on Google maps. Okay, that's actually pretty sweet. Twitter: No longer just for telling the world when you're taking a dump. [Dash, Thanks Dave!]