Amazon announced the upcoming release of their new Kindle DX, which is a large format reader (9.7″).
Here is an article from Wired:
The bad news is that it won’t be out until this summer at a cost of $489.
The good news is that it supports native PDF files and allows you to connect via a USB cable. Here is an excerpt from the user manual talking about the USB file handling (http://s3.amazonaws.com/kindle/KindleDX_Users_Guide.pdf):
8.2 Handling Files through USB
MANAGING YOUR DOCUMENTS
When your Kindle is connected to a computer and mounted as a USB drive, you will see three default directories or folders. The one called “documents” contains all of your digital reading materials like books, newspapers, your My Clippings file, etc. The “Audible” directory is for your audiobooks, and “music” is for your MP3 files. You can add Kindle-compatible files to these directories, and you can copy, move, or delete the files that are already there. The computer file formats that you can read or listen to on your Kindle are listed below:
• Text (.TXT)
• PDF (.PDF)
• Unprotected Mobipocket (.MOBI, .PRC)
• Audible (.AA, .AAX)
• MP3 (.MP3)
For now, I am waiting for Sony to update the Sony Reader before I buy another eReader.