Barry Pearson has put together a comprehensive list of products (OK, so technically *not* "devices", but it sounds better!) that support Adobe's open DNG RAW format.
The list is broken down into categories, such as "Adobe products" and "Products from Camera Manufacturers," and has 115 items so far - the last update was July 13th.
Pearson's blurb from the site:
DNG is an openly-specified, freely-usable, raw file format. It is the only contender as an emerging de facto standard raw file format. This page identifies products that claim to support DNG in some way. I have personal experience of few of these products. Some of the information here is probably just plain wrong! Please tell me of any errors or omissions, so that I can correct them.