Do they have internet connections for laptops, like a Wi-Fi network at the track? If not, then you could connect through a GPRS connection, but the speeds aren't good enough to actually stream video. I use my EDGE card quite a bit and get downloads in the neighborhood of 120 kb/sec. Uploads are ever slower, though. If a person subscribes to Verizon mobile broadband, they can get downloads of up to 2 Mb/sec!! Of course, it's not the download speed that matters if you are trying to stream video. However, once mobile broadband with UMTS or HSDPA technology is widespread, streaming live video through your laptop using your cell phone connection may very well be available from almost anywhere.