It was already a fair bet that Steve Ballmer will be talking about Windows 7 during his CES keynote tonight, especially after the beta keys leaked but we'd say the odds just got better: we just hit up the Microsoft booth a little early and spotted a prominent 7 display. We were hustled out before we got a chance to dig further, but we were certainly intrigued by the black cloth covering up the Windows Mobile display -- we doubt it means anything, but maybe Ballms has some WinMo 7 action to show off as well. Check it in the gallery!Gallery: Microsoft CES ninja booth tour