Just look at :53 of the video and this explains it all. The sad part about it is that Samsung will not ackowledge that the phone needs either an upgrade or replaced antennas. It pretty embarrasing as well and if you look at his other videos with other phones they never drop a signal like this phone and it seems like he pretty much does his videos at the same location. Shameful!!!
Blazer Rom on the Samsung Epic 4G Touch - YouTube
Blazer Rom on the Samsung Epic 4G Touch - YouTube