You have an RNS510....I have the mfd2, I take it that these two units are not one in the same thing? Dont take me too literally mate, the mfd2 gets a crap reputation on here, I am sure not too many would defend it that robustly. Awaits an avalanche of ....

The I do think that iphone satnav works very well considering besides being a phone, it's almost a full web device, an email portal, a camera, an ipod, a games machine, a world radio, a device for remotely setting my skyplus, giving me live footy results when i am in the pub, a dvd/ video player and a remote way of watching bbc iplayer, watching porn, an e-reader, google earth, a wee guitar and posting on internet forums just like this from the train...oh and it has the complete works of shakespeare in there too....sure it has its limitations, nothing is perfect, even my GTI.