This is my first post; thanks for having a great forum.
Anyway, I came up with a ridiculously cheap and portable way to make a Kindle 3 stand. I made a post at Instructables here
with pictures (also attached), but the gist is that you clip a small binder clip to the lower part of your Kindle 3 and place a chopstick through the clip handles. I put a business card between the clip and the Kindle to keep the clip from scratching the plastic.