Blimey!
I just have Tom Tom on my phone, along with a little solar powered bluetooth GPS receiver. For the amount of times I need Satnav, it works a treat. I can even use it on my pushbike! I have a little pouch for the phone which goes on the 'bars and the GPS receiver goes in my back pocket. The 1st time I did that I had Ozzy Osbourne effing and blinding at every junction, telling me where to go (literally

) You should have seen the reaction from astonished onlookers!