CmdrTaco from the jam-and-the-holograms dept.
mferrare noted some rumblings that 4G Broadband may jam GPS. There's a slew of technical bits in an report (PDF). 4G broadband frequencies (1525-1559MHz) are next door to GPS frequencies (1559-1610MHz). Test results won't be out until June.
Promising costs nothing, it's the delivering that kills you.