I would be interested to know if CF's blitz on every carputer manufacturer around to get them to sell CF really did payoff. CF went commercial sometime around Feb. 2007, but was in developement from 2001 (6 years in beta? wow!). SD went on sale 01/2006 and was in development from, well, I show a single post from 2001, but the first real "streetdeck" related post was 01/2006, when it went on sale, so not sure of the actual "start date".
CF is sold by everyone and their mother.
SD is sold (owned, developed, etc., I don't give a damn what they claim) by MP3car.com
It would be interesting to see how they fare on total SALES, not users. The truth is CF "SHOULD" be #1. I just doubt the numbers vs. sales matrix show it. Anyway, I just wanted to give kudos to CF so people didn't think I was totally unreasonable. But I still prefer SD.
Edit: Ok, to be fair, the first REAL CF post was 12/2004, so lets go with 2 years in beta instead of 6.