3 Skypephone - sat nav and secrets

Hi

I've got a 3 skypephone to see what all the fuss was about.

I can honestly say that for the £50 they want it's well worth it. Fantastic little phone.

Problem is, I'm looking for some kind of Sat Nav solution for it.

I know of Nav4All.com but that won't install on it. Get's a 909 Application Authentication error of some kind. I don't want to pay a lot. Heard about the one from Carphone Warehouse (MyMobileSatNav but can't find anything on their website about it.

Also, I was wondering if anyone knew any secrets with it? Like hidden combination of keypresses that'll do super duper things.

I'm not quite ready to ditch my N95 though...

Ta

Tim