Best Buy is carrying a $20 cover/case for the Kindle 4 and Kobo Touch from Rocketfish:
http://www.bestbuy.com/site/Rocketfi...CZ5jAbhY772IPX
I picked one up, and posted about it on a different thread. I thought some here might also be interested in features not mentioned on the website, but I'm not quite sure how to link to that, so here's a summary:
* the cover folds all the way back and the elastic loop will hold it in place for one-handed reading.
* a slot in the inside "spine" allows you to stash a pen in the cover, and there is a pocket on the inside cover to hold paper, cards, etc.
* the little "flags" on the elastic band are removable (they've got velcro.) Apparently, the idea is that you can indicate your ereader with a particular color, and your significant other could use a different "flag" to indicate their possession.
* the inside is lined with a suede-like material that feels really nice in the hand. Really, really nice.
* the Kobo (or Kindle) is held in place by 4 elastic loops with a leather-like material reinforcement on the portions that actually touch the ereader.
* the outer cover is some sort of nylon that seems to resist coffee rings as well as dust.
Overall, it seems like a pretty nice cover to me. The pen-holding aspect was a pleasant surprise, and for some one who reads mainly library books, it's been nice to have a pen handy to make notes, as I wait for highlighting to come to sideloaded books.