I have an Ipad and a Kindle. I love the Ipad for travel, for checking email and keeping up with this board. It's nice to use in the evening when I am watching TV with my husband, too.
I bought myself a Kindle for my birthday in January because of the size and ease of ordering books. I got 3G because I am sometimes at my parents or other places and don't have wireless and I am obsessive about reading. I didn't feel the need for color because of what I like to read and I still collect my quilt books. Since I read each night lying down in bed the smaller Kindle is perfect for me!