Investment banking and securities firm Goldman Sachs is more or less giving up on Google's Nexus One. A note Goldman Sachs published this week indicates that it's cut its 2010 sales forecast by a whopping 71.4 percent. As reported by the Wall Street Journal , the note stated, "We previously estimated that Google might sell 3.5 mn Nexus One units in 2010." Now, after seeing some data from Flurry, "We forecast that Google sells 1.0 mn Nexus One units in FY2010 . . .