This video will show you the simplest way to tether an iPhone 4 or 4s to an Android Tablet with out Jailbreaking and Rooting so that you can connect to your cell phone via WIFI to be able to surf the web using your phones data plan. Reason for this is not all tablets have 3G or cant always find a WIFI Hotspot, this turns your phone into a Personal Hotspot.
NOTE: You can also choose the options for connecting with Blutooth.
I also do recommened you have over 500mb on your data plan, I have 1gb and have never gone over.
Be sure to rename your phone from the default name so that it will be easier to find. Once this is done you wont have to follow the steps again just turn on the Personal Hotspot and it will automatically connect.