Although cellphone tower location registering has been used in courtrooms for some time, we just knew that the GPS capability and morewould be put forth for use in cases where even better location granularity is required. Well, what do ya know: it's here. For alleged murderer Darryl Littlejohn, he knows it all to well. While movement from tower to tower is not exactly a new strategy for attorneys to use when arguing cases, it's use as an alibi can go either way. Critics say that rush-hour wireless traffic can shunt signals to towers that cause accurate tracking to be obfuscated somewhat, while others say criminals can plant their handsets away from crime locations for later use as an alibi. Yeah, we love when lawyers begin grasping the technical ins and outs of wireless towers and advanced tracking methodologies.