the Samsung Galaxy is already available in Germany (O2), and France, and is expected to launch across the UK at the end of July beginning of august on the O2 network.
From what i've read in early reviews, the Samsung Galaxy runs the standard Android platform with all the Google features but still isn’t classed as a “Google Experience” handset which means firmware updates will need to be done via USB rather than over-the-air.
Here's an (and pretty cool) official Samsung promo video for the Galaxy.