Chris, I'm in the same boat. Tried the Flex for three months, it just wasn't for me. It ran hot and the forced rotation ( in the opposite direction ) just didn't feel right. The only reason I was looking to upgrade from the PC was vibration. So I sold the Flex and got the Duetto, could not be...
Same boat as you ordered on the 1st. No acknowledgement, when I contacted them was to ship in 5-7 days that has also come and gone. Had no problems charging my credit card on day one though.