I bought this for my iPhone and have been more than impressed.

It has a friendly easy to use interface, provides good routes and is great value for money when compared to other sat-navs on the market.

I found, comparing to a tomtom app, that I actually prefered using the copilot system, It was quicker, easier to use and far far cheaper.

My favourite two features are definately the easy-lane finder (currently advertised as the new tomtom's selling point for £150) and the free speed camera updates.

I would say that occasionally it takes a little longer than expected to find a satelite fix, which can be a bit annoying if you really don't know where you are, but other than that I would certainly reccomend Copilot live 8 to anyone, especially on iPhone.