When I first got my 650, I went ahead and crocheted a "kozy" for it using blue thread and a half-double crochet stitch. It worked great and was slim, however, I found that I wanted something that would allow me to use the reader in bed without having to hold it.
Thanks to this thread, I ordered:
http://www.amazon.com/igadgitz-Genui...8253639&sr=8-2
Which is perfect for my needs. The leather is great (smells so good), securely holds the unit in place, and has many positions to slide the stand into. I'm able to let it sit on my chest when i'm laying in bed which allows my hands to stay warm under the cover. Now all I need for Sony to come out with is a page turner remote clicker, so i can stay cozy under the covers and NEVER have to get cold hands when turning pages.
A secondary bonus I discovered is that when the case sits up on a table, it sort of becomes a "low-budget" e-picture frame (as much as a $229 eBook reader can be cheep).
The downfall is that the SD card pocket on the case is almost unusable when you have the case open. If you don't put the stand out and just hold the book in your hands, I'd be afraid that the card would slide out. As I don't own a card, this hasn't become an issue yet.
Anyone else have any input on this case?
/innowen