Microsoft released MSE last Tuesday. I had it downloading and installed within minutes. As I reported before, it’s a free and very light anti malware product that doesn’t wreck your PC by trying to be all things to all people. You’ve got Windows Firewall for Internet security (built in and reliable) and MSE for anti malware.
MSE is licensed for free for home and for small home businesses. It uses the same definition files as the ForeFront range, MS’s anti malware corporate solution.
A number of countries were added to the original beta countries. Ireland was one of them. I know that there were issues regarding the country identification last week, e.g. I had access to the download from a Cork hotel on Tuesday but not from home on Friday. It appears to be fixed now.