So, what do you think about that new Metro interface in Windows 8? If you ask ten geeks that question, you'll end up with ten different answers -- and a lot of them won't be positive. Up until this point, however, we could only base our opinions on blog updates from the Windows team and a far from fully functional Developer Preview build. Prepare to become much better informed soon, though: Microsoft just announced that it will roll out the Windows 8 Consumer Preview on February 29th at the Mobile World Congress in Barcelona, Spain.