Berlin: Four storeys of Windows 7 goodnessauthor Rik Hepworth calendar Nov 13, 2009 · 1 min read · Uncategorised ·Share on: twitter facebook linkedin copyAs you walk out of the U-bahn at Potzdamer Platz right now, you are faced with the most enormous advertisement you have ever seen. Well done HP and Windows 7 – subtle it most certainly is not!