Hidden in the Ocean is an Easter Egg Known as Volition Island.
Your character can now do a lot of stuff they couldn't do in the first Saints Row for example: Fly planes and helicopters, Drive boats, Change the gender of your character, your character can now talk.
At the airport are signs for a Noitilov Airlines. Spelling "Noitilov backwards gives you "Volition" - the game's developer.
A series of videos called "Street Lessons with Uncle Gary" starred actor Gary Busey giving helpful tips to the players of Saints Row 2. Gary Busey attended Oklahoma State University in Stillwater, Oklahoma, a town that shares the same name as seen in Saints Row as well as its sequel. He's also done a video in which he speaks about motorcycle safety. Busey was seriously injured in a motorcycle accident during the 80's.
This is the first title in the series to be released on PC, & PS3 since the original wasn't released on either platform.