Someone i know recently found out that they had an extra partition on their macbook pro. Do you guys know what its for and if its nothing special then you do you get rid of it? My only guess is that it could be for time machine to do backups.
There should be a EFI partition of 209MB, a recovery HD partition of 650MB, then the main partition of whatever the drive size is.
Run the terminal command "diskutil list" to see the drive layout. Don't go deleting partitions unless you are sure what you are doing... you will wreck things.