links for 2010-04-05: Limits and π; Everything a game?; Rimini vs Oracle

• Take It to the Limit - Ever wonder how to calculate π?  Or prove the area of a circle is πr²?
  
• Why games will take over our lives - I'm not sure we'll have wifi enabled toothbrushes in 5 years, but everything social is fair game.
• News Analysis: Rimini Street Countersues Oracle - I don't know specifics, but competition is good as long as contracts and IP rights aren't being violated.