App for adding side notes to a powerpoint slide or presentation

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http://androidforums.com – Hey everyone, I tried doing a search and couldn't find anything on this in the forums. I was wondering if anyone knew of an app for viewing a powerpoint presentation where it allows you to add side notes? I am a student and all of our lectures are done through powerpoints which they provide for us. I would like to be able to add my own side notes to each slide as the lecture moves along (instead of using paper basically). Does anyone know of an app that does this?? I know this feature exists in MS Office Powerpoint. Thanks for your help!! (General)