Are there any attempts at creating ASIC for bitcoin mining? I take reference to the Question here which compares ASIC with FPGA. In this question someone quotes a company called Largecoin that is said to be at the development of such an ASIC. However their web page does not really look promising. It rather looks like some investment seeking attempt. (Quote from the only content on the web page: "For more information about LargeCoin, visit largecoin.com")

I would like to know if there are any other attempts at building ASIC for bitcoin mining?
The closest thing to ASIC seems to be the BitForce series which has just been released and customers it seems are just begining to receive their first orders.

From the website:


  Is your system based on FPGA or ASIC technology?
  
  The BitForce processor card is a proprietary implementation of both
  FPGA and ASIC technology.


As far as I'm aware, the actual chip design won't be released, but it seems legit now that people have begun testing the potential.

http://www.butterflylabs.com/