> <i>Key to grabbing the data from the air were cheap Motorola phones which can have their onboard software swapped for an open source alternative.</i><p>Wasn't there a news bit not long ago about law enforcement agencies being puzzled by criminals buying/stealing loads of cheap Motorola phones?
Previous report on this talk by arstechnica.com:<p><a href="http://news.ycombinator.com/item?id=2049026" rel="nofollow">http://news.ycombinator.com/item?id=2049026</a>
This is one advantage CDMA has over GSM, it's much harder to intercept CDMA <a href="http://www.denbeste.nu/cdmafaq/eavesdrp.shtml" rel="nofollow">http://www.denbeste.nu/cdmafaq/eavesdrp.shtml</a>