<html><div style='background-color:'><DIV>I have used Ruby and some others (Perl, Python, etc.) for some useful things. Those who know these languages, don't need to&nbsp;say why. But when it comes to the ultimate application like a language itself (Ruby, Perl, Python, etc.), nothing can beat the awesome C. To my knowledge, most advanced chess programs (Deep Blue, Fritz, Junior, Shredder, etc.) are written in either C or C++, never Prolog or Lisp. Mastering C/C++ is still required when it comes to performance. If a chess program in Ruby can beat all those chess&nbsp;programs in C/C++, no naive propaganda for Ruby needs to be made. So far I haven't spotted any Job that requires Ruby, but the trio C++/Java/C#;&nbsp;most companies and managers&nbsp;are very well informed.</DIV></div><br clear=all><hr>STOP MORE SPAM with the new MSN 8 and get 2 months FREE*</html>