I'd love to have a *2 way* satellite messenger w/ GPS & topo maps... and the ability to set custom locations (like TackleTom requested for fishing holes) to saved dispersed camping spots, etc. Minnesota has a very large area with zero cell reception (larger than just the BWCA wilderness), it would be nice to send a daily A-OK message without the false alarms that the Spot messenger causes (nothing like S&R dropping down from a helicopter to interrupt your romantic lakeside dinner...)