Yesterday Sony announced two new Android tablets.
http://news.cnet.com/8301-17938_105-.../?tag=mncol;1n
There's also a video on CNET.
Given the Rowling announcement, I think we are still likely to see new e-ink readers as well.
Having recently picked up a BN Nook Color and rooted it to CM7, I am adjusting to a backlit device for indoor reading. Now I carry the Nook, the 350 and a Windows 7 laptop with me when I travel. Each has its own purpose.