The basic kindle doesn't really need any updating, its about as perfect in its simplicity as it can be. There is only one thing I wish it had, a sort in the archive for recent. It only has by author and by alphabet. During day time it is the best display on any of my kindles. And its light, just a good basic e-reader.
I love the thing.
I still am keeping my eyes open for a new PW though. For evening reading to replace my PW1.