Producing mosaic photo with Metapixel

Here is an interesting article about creating mosaic photos using Metapixel tool for Linux: http://www.fsckin.com/2007/12/09/generate-awesome-photomosaics-on-linux-with-metapixel/.

You should definitely have a cool workstation if you are going to produce files above 50 MBytes in size. Unfortunately opening 10 kPx x 10 kPx image in Gimp takes sooooo looooonnnnggg...