Wishlist is a project mainly written in Ruby, it's free.
Fetch wishlist prices from amazon and bookdepository simultaneously
wishlist is a small application that fetches book prices from a variety of sources simultaneously.
Ruby (1.8)
hpricot (0.8.4) gem install hpricot --source http://gemcutter.org
schleyfox-peach (0.3) gem install schleyfox-peach --source=http://gems.github.com
./wishlist
To experiment with my wishlist: