Google Maps now has satellite imaging for the UK. Unfortunately, it’s not very good.
There’s two basic problems. The first is scale – the satellite imaging is not to the same scale as the maps. Horizontally they’re fine but vertically the images appear to have been shrunk – sure, you see more on the screen but it makes everything look out of proportion.
Then there’s the actually quality of the maps. You can’t zoom in nearly as far as you can on the US maps and even zoomed out the quality is rather poor – the images are quite dull and blurred.
The aerial photography offered by Multimap is much better – while it’s not quite up to the same standard as the satellite imaging offered by Google for the US it’s still an improvement. With Multimap’s photos you can actually make out individual buildings – with Google you can’t.
Update: Gah, should have done some more research. The quality of the imaging varies across the country – there are ‘pockets’ of high quality imaging in places like London and Manchester, which is up to the same standard as the US imaging and much better than that of Multimap. Unfortunately all of their Yorkshire mapping is low quality, so while you can get up close and personal with the Millennium Dome in Greenwich, Bradford is just a dull blur. Make of that what you will.