This post is ebook reader-type independent. And, please note, I am not shilling for the company, I just found this product, bought it and LOVE IT!!
It's a travel bag. Yeah I know .... big deal. It's just that this one has steel cable in the shoulder strap, which makes it pretty damn sturdy.
Anyway, I found that the front pocket holds my cellphone, iPod, pen, Kindle and reading glasses really nicely. I can also fit my Mighty Bright reading light in there as well.
In the main pocket, I've got my makeup bag (hey, I'm a chick .... ) and one of their wallets. There are side pockets that snap small or expand ... in the unexpanded size, they hold my sunglasses very nicely. Expanded, perfect for a water bottle.
The wallet I love because it has dedicated pockets for an extra cell phone battery, and extra SD or CF cards .... as well as a spot for your passport, plane tickets, money, credit cards ... and you can hang around your neck for easy access in security lines.
I got them both yesterday ... (both in black) ... and just thought I would share my review ... just in case you are looking for a really nice (not horribly oversized) bag that will hold your ebook reader.
http://www.herringtoncatalog.com/rs148.html