Yeah - its a bit hit and miss with that and knowing my luck it will be hit. Have found their main website - Erisin Car DVD Player, High Quality Autoradio, in Car DVD Wholesale, cheap price Car Stereo Radio
. They do ship from the UK so can avoid the duty problems, but at the moment this model is only being shipped from Hong Kong. However, the feedback suggests that they might start doing it from the UK soon.
Also read other 'review's from Andriod world ( or something like that - yeah I know its sad ) and the posts have mixed reviews of the units. Certainly this newer version seems to be more robust than the previous one.
Interesting to see how the GPS will work. I believe it will use both Google ( do you need a permanent connection ? ) or Igo
So might wait to see when they start shipping from UK