this be my 2nd gp for my Windows Mobile -lrb- Pocket PC -rrb- device over the last couple of year and the Tom Tom Nav 5 be by far the easiest to use and work . signal work great even in my pants pocket . I have a TeleType GPS before and it be difficult to use and understand . the only negative I can say about the Tom Tom 5 be I wish they would have Topo map for hike by they do not .