Selective availability was turned off by executive order in 2000.
The GPS system without selective availability is accurate to about 15 feet. Add-on technologies, such as WAAS and differential GPS, can improve that accuracy to about 1/2 inch.
Gallileo's free service will be accurate to about 13 feet (4m). Wow, a 10% improvement. For a subscription fee you will be able to get accuracy of three feet, and using something like differential GPS they'll be able to get down to about 10 centimeters. Notice that differential GPS (ours) is still much better than the full subscription version of Gallileo.
All I can say about Gallileo being better than GPS is "Whoopee Doo". It's going to come online, if they get it online, in 2008. I should hope that twenty extra years of development would get them a system with some improvements. I'd say that's pretty scarce improvement for the investment. What they really want is safety from when we turn the GPS system off in time of war. Safety from us...
Jim