It wasn't too hard to see this one coming after reports of "financial difficulties" and a potential early demise starting cropping up last month, but it looks like AT&T's CruiseCast in-car satellite service is now officially done for. According to RaySat COO Mike Grannan (AT&T's partner in the service), all new activations have now ceased, and existing customers will soon apparently be able to get a refund for the cost of installation, de-installation, equipment and service. For those keeping track, the service just launched in June of this year and, while no installed base numbers seem to be available, it doesn't appear to have caused much more than a blip on the radar, with it hindered in part by a hefty $1,300 up-front cost.