With Bill Gates now a Microsoft part-timer, CEO Steve Ballmer is filling in at this year's opening keynote for the Consumer Electronics Show. We're bringing you live coverage of his speech, which started at about 6:30 p.m. PST. Windows 7 is likely to be the centerpiece of Ballmer's discussion. Another piece of his keynote--a deal with Verizon Wireless--leaked out earlier in the day Wednesday. It's a five-year pact that will see Microsoft's search show up on all of the carriers' phones.