I suppose one day I might spring for a tablet, and if I do it would probably be a future Amazon Kindle Fire. I think they are working on a 9" or 10" model for maybe the end of this year. That would be sweet.
Most reviews liked the Kindle Fire but lamented some lacking features such as a camera or other browser/interface capabilities. I think that after another generation or two the Kindle Fire could stand toe to toe with the iPad.