Following a navigation system's instructions without driving into a ravine is hard enough as it is -- can you even imagine how hard it'd be if you kept losing GPS reception every time you drove within range of an LTE tower?
It's not just about speed, though -- the new gear also supports interesting new services, including the ability to notify users when other users (for example, children) have entered the base station's range and reception of time- and location-sensitive coupons directly to phones presently attached to the cell.