the goTenna is a device that allows you to connect directly with others even when there is no connectivity. it communicates wirelessly with your smartphone without the need of cell service or wifi signal. range depends on your terrain and elevation, but you can get a pretty good idea on the ‘how it works‘ page, which also gives some more info on the technology.
it seems like it’d be a pretty useful gadget for many situations, whether you’re out hiking in the wilderness or at a festival with no phone signal. i really like the design, simple but rugged looking, and the software looks good too. the lanyard, available in four colours, allows you to easily clip and unclip the device to bags or clothing. they will be sold in pairs for $299, but are available for a limited time as a pre-order for $149 for two.