Is that really something that's available? Nothing turned up on a cursory web search, aside from a story about students building their own with $3,000 dollars worth of equipment (and it sure didn't fit in a pocket)
edit: And Wikipedia says "GPS spoofing attacks had been predicted and discussed in the GPS community previously, but no known example of a malicious spoofing attack has yet been confirmed"
edit: And Wikipedia says "GPS spoofing attacks had been predicted and discussed in the GPS community previously, but no known example of a malicious spoofing attack has yet been confirmed"