Oh, and while we are talking about Download Guides, I have already requested that the 'IMP Download Guide' be created for ebookwise 1150 users.
The EBW1150 has just recently "acquired" the ability to download .imp directly from within a .imp ebook onto the reader as well as a .imp ebook directly from our IMP ebook upload forum here. In fact, EBW1150 users can also have a .prc ebook converted "on-the-fly" and the resulting .imp ebooks gets downloaded onto the reader via a plugin I wrote for the impserve program using Mobi2IMP.
The IMP Download Guide, like the Mobipocket one, would then just list the .imp ebooks along with the descriptions and be indexed similarly.
It would be great to have all three popular formats having their own Download Guide!
Maybe the Sony will "acquire" this ability to download any ebook therein as well...