Is the memorymap worth buying for the i phone ? whats it like to use and does it loose signal in the trees?

Well it uses the phone's gps so it'll work as well as anything else under trees.

I've found that it works pretty well but not a patch for accuracy under trees compared to my etrex h.

thought so was thinking of buying a satmap with my birthday money it can't be as good as that ? 🙂

you also have to pay another £20 on top of already owning the maps you want to use!!