I'm all for change but will this be another "USA Only" thing? Leaving the rest of world and Europe out? Whilst this is great I would rather they update things like Siri to cover the UK or update iTunes with 1080 movies (yes I know its the content provider)
this is what I fear, I wouldn't put it past apple to release it with only with full map support in the US and the rest of the world will be stuck with either nother or low quality maps and only have detailed maps in the major cities like London.