Haali Reader. . . for Windows CE & Windows PCs http://haali.cs.msu.ru/pocketpc/[New Window]
With a well configured copy of Haali Reader on my Tablet PC, I actually prefer to read the FictionBook (.fb2) copy of a book, rather than the Hardcover version of that same book. (For a Laptop or Tablet PC, download the Desktop version which is also listed on that page.)