Great GPS App

Everything you might need in GPS app.
My favorite is the ability to download large areas of topos, so you have your maps when you most need them; not just when you have a 3G connection.
Update 26-dec-2012: Use it almost everyday! Really like all of the controls for displaying tracks. Also, even installed on my iPad, it is nicer to view and build tracks on it even though it has no GPS.

BPPhotog about Gaia GPS Classic, v10.4.5