The Simple Ipad Stand is err an Ipad stand. It's not rocket science but it does the job very well and I use mine all the time. It allows for vertical or horizontal use and can also be used as a rest to type.
It also can be used as a picture frame holder.
More info at http://www.simpleipadstand.com/
There are instruction on the PDF but the important thing is to change the slot to the size of the card you are using. In the lasercut version I use a node but I've found that a pointless in a cardboard version.