Courier's now a mystery unearthed -- and subsequently sent six feet under -- it looks like we need new secret Microsoft projects to pique our curiosity. Enter the ever-connected Mary Jo Foley with some investigative notes into "Menlo," which seems to be a future replacement of Windows CE "with Windows NT inside of mobile devices." The associated graphics platform would be "Experiment 19" (not quite as interesting a codename, we agree). Presumably heading up Menlo is Galen Hunt, a researcher from the Singular project, joined by other Microsoft brains Ruben Olinsky and (at least at some point) Kerry Hammil. It's always surprising how much info we can glean from LinkedIn, but we digress: Hunt's associated profile says Menlo "[combines] OS, UX, and applications research to explore the future of computing when mobiles becomes users primary PCs." Some bigger picture conjecture seems to center around Menlo having a Silverlight-based UI and boasting improved compatibility between itself and Windows desktop apps. Lots of food for thought, and if you're interested in what might come out of Redmond many, many years down the line, head on past the read link for all the juicy tech gossip.