With all the talk of the coming movie Transformers: Revenge of the Fallen, more rumors and spoilers keep coming in from various places. One of these rumors/spoilers is that Soundwave is going to be a space satelite. TFW2005 has recieved an image from wforum.com of what could be the concept art for ROTF Soundwave and Ravage. The image shows their robot modes pictured with two possible altmodes for Soundwave: the satelite, or a pickup truck. See the info here and the image here.

But, TFW2005 also states that Roberto Orci stated that Soundwave will not be a pickup truck, but does not rule out the the possiblity of him being some kind of truck. So this truck on the concept art could've been an earlier idea that was dropped later. Orci also revealed some other info about that movie that's worth taking a look at. See it all here.