With the hot standards battle for document formats, which one is your fav.? I’m betting on PDF since it is well understood, supported by tools like LaTeX and LyX; and ODF for new docs, which in turn can easily be converted to PDF. No more .doc, .xls, .ppt, .lwp, .123, .prz, .swx, .sxc, .sxi etc. Nice! Pervasiveness of MS tools may mean OpenXML + XPS is the new standard, but replacing PDF will be tough!