Ford and Microsoft's little voice control in-car connectivity project seems to be doing pretty well for itself, judging by the latest milestone it has passed. Sync has just been announced to have crossed the three million mark when counting the cars it's installed in, with recent data suggesting takeup for the $395 optional extra is growing. Nearly 80 percent of purchases of current 2011 Ford models include Sync, while over 80 percent of those already using it say they'd recommend the service to others. The latter number has improved by a robust 5 percentage points over last year, so clearly something's being done right here, but we're more interested in finding out what alt