Original: From 2007 to 2010, participants from the ECW brand competed along with the Raw and SmackDown brands, while the ECW World Championship became available for the winner to challenge for regardless of their designated brand.
Simplified: The 2007 Royal Rumble marked the first year participants from the ECW brand competed along with the RAW and SmackDown! The winner of the Royal Rumble now has the option to challenge for the ECW World Championship as well.