The exact details and specifications of the Daily Edition have not been released (or leaked) yet. In some places it is called the PRS-900 and others the PRS-2121, although I don't think either have been proved yet (if anyone has the inside scoop please let me know). 900 makes more sense, when you think about it.
I have the preliminary details and photos posted here, along with a link to Sony's press release regarding the Daily Edition:
http://www.the-ebook-reader.com/sony-prs-900.html