I must be dense but has anyone figured out whether there is some kind of quick access to the emergency numbers listed in the security menu, especially 911? There doesn't appear to be a quick dial slot saved for it as there was on the 510 (as I recall). It's nice to have them listed but unless you can get 911 with one keypress, it seems rather pointless. On a related topic, what do the two Location settings (E911 and Location On) actually mean? Thanks.