CNET (NSDQ: CNET), in the process of being bought by CBS (NYSE: CBS), has launched a new logo for the company, without its vertical pipe, and has also redesigned its main CNET.com site. Besides the spiffier logo and the updated look, part of the redesign also includes “re-engineering the back-end infrastructure with a new API that is helping to deliver pages 40 to 50 percent faster,” according to CNET News.com Editor in chief Dan Farber.