The e-book had been pulled from the Kindle store on Tuesday, and today customers who had bought it received a cryptic (and ungrammatical) email from Amazon advising them that “the version you received had Missing Content that have (sic) been corrected.”
The manner in which this correction was applied has upset customers such as Cynthia Ewer, who was 400 pages into the over-1,000-page novel, or cdale77 who was 500 pages in. They were not upset at obvious typos in the book that they found so much as they were put out by Amazon’s high-handed notification that told them there had been “Missing Content” but gave them no idea exactly what or where that “Missing Content” was. (Even Amazon’s phone support people couldn’t say.) Also, the replacement wiped out any highlights, bookmarks, and notes made in the previous version, as well as the place-keeping bookmark noting the furthest location read.
Whispersync™ giveth, and Whispersync™ taketh away. You should read the rest of the Teleread post, which links to someone who has compared both versions of the text and found very little "Missing Content™." (And I still heartily recommend Reamde, even if you have to read it—gross!—in paper form.)