10.4 - Feature: Dictionary Cool

• Hit control-command-D over any text. Cool.
  
• Hit control-command-D then hold control-command and let go of D, allows you hover over words and getting the look up on the fly.
  
• Dictionary widget under Dashboard
  
• Dictionary application, just type dictionary in spotlight.
  
• Control click in applications to get "Look up in Dictionary". Strange does not work in Mail.