Hoping to read the New York Post on an e-reader anytime soon? Then your choices just got quite a bit more limited, as the newspaper has signed a deal that will see Sony offer the only version of the paper for digital reading devices. Joining it are various exclusive offerings from Dow Jones & Company, including The Wall Street Journal and MarketWatch, which won't be completely exclusive to Sony readers, but will be available in special editions only available on Sony readers -- that includes The Wall Street Journal PLUS, a digital edition of the morning paper that also features an update of the day's events after the close of the markets. Owners of the Sony Reader Daily Edition will also naturally be able to get the day's papers wirelessly delivered to their readers, with subscriptions running between $9.99 and $19.99 a month.

It flew under the radar until a quiet leak this morning, but Sony's just announced the Reader Daily Edition, as well as updated Mac-compatible eBook Library 3.0 software and a new library content service. The Reader Daily Edition has a seven-inch touchscreen with 16 levels of gray as well as a AT&T 3G modem, enabling it to pull content wirelessly -- it'll launch in December for $400, and the 3G access will be free, but limited to accessing the Sony eBook store. Yeah, sorry -- no web browser here. We're a little more geeked about the library finder service, which enables you to check out ebooks and other digital content from your local public library on any of the Readers -- for free. The New York Public Library is the flashy public launch partner, but there are "thousands more" looped in through a partnership with Overdrive.com -- check out the huge selection of top-tier content you can get through the Chicago Public Library, for example. Interestingly, the library buys a fixed number of "copies" of each title and "checks out" the licenses, so you're on a time limit -- licenses will revert after 14-29 days depending on your local branch's rules. Yeah, it's a little DRM-y and there's a lot of interesting new media and copyright implications there, but it's still a pretty amazing idea, and it's definitely a major advantage over the Kindle. We're gunning for more info now, we'll let you know as soon as we find out more -- until then, check two more images after the break.

Update: We're told that partnerships with university libraries were "only a matter of time," but sadly there's no timetable for a European launch at the moment.

Read - Sony Reader Daily Edition PR
Read - Overdrive.com partnership PR