It appears to be official - The Sony Rolly has been discontinued, at least in the United States. Going into a Sony Style store I was told the only way to get them now is in outlet malls. They're not even carrying accessories. Ouch.
I'll check on the Japanese version when I go to Japan later this year.
You can still buy Rollys on eBay, in outlet malls (apparently), and from friends.
Best,
-Auri