No, they haven't released a Linux version of Roboform, nor they have any plans to port it to Linux (they might do it for Macs since there's some money in there, but on Linux it would be free so no marketing reason).
Someone emailed me asking if there's a Roboform for Linux version, so I thought I'd post a workaround here, since I was having thoughts on switching to Ubuntu on my laptop (I don't use it for work). From what I've read it's only possible to use Roboform through a Windows emulator, such as Wine. You can use it via Wine in either Internet Explorer 6 (http://www.tatanka.com.br/ies4linux/page/Installation) or in Firefox.
Another solution would be to, well, not use Roboform under Linux but use a replacement. Sxipper is such a program, a firefox addon that can import logins from Roboform and works on Linux.