"Live INTRO is the starter-version of Ableton Live and the succeeder of Live 7 LE - but still an extremely powerful product with all the essential features of Ableton Live at an unbelievable low price with more features and loads of content!"

"Live INTRO will be available shortly at a street price of 99. Because of the Able 10 10 YEARS of Ableton there is a FREE Upgrade to Live INTRO for every Live 6 LE and Live 7 LE users."

Source: http://www.macmusic.org/news/view.php/lang/en/id/8629/