Business 2.0: Silicon Valley is once again having an affair with consumer electronics. Lest we forget, most affairs end in either recrimination or tears, and the Valley’s past flirtation with consumer markets doesn’t bode well for this latest attraction. Silicon Valley’s two most successful CE companies — Palm and TiVo (TIVO) — are still limping along despite becoming icons of high-tech. For every iPod there are a dozen ReplayTVs that peaked way too soon. Find out the reasons at the Business 2.0 website.