TweetMobile is a kinetic sculpture of mechanical birds that lets you follow the Twitter feeds of a few favorite friends without having to turn on a computer or phone. Each bird is assigned to a particular friend (or Twitter search term) and swoops, hums or flaps its wings when that person sends out a tweet. This movement strips away the content of the message and delivers something else: a sense of presence. By translating these intangible network activities into something physical, it reminds you that these people are out there, somewhere, living in the world.
Of course, as nice as it is just to receive mail, it's the rare letter that sits around forever unopened. Your friends use Twitter to send specific messages, so you can choose to receive them by turning on TweetMobile's projector.