Over the weekend we saw reports of what appeared to be fraud occurring in the iTunes system -- namely, a rogue developer had somehow managed to snag 42 of the top 50 sales positions in the App Store's "book" category with seemingly bogus content. It looked as if there was some correlation between those suspicious sales and word of an increase in iTunes account fraud, but Apple had been mum on the subject over the holiday weekend. We've finally gotten a response from the company, and the folks in Cupertino say that the developer in question -- a gentleman named Thuat Nguyen -- has been chucked out of the Store altogether. Additionally, while they don't explicitly say fraud occurred, they suggest you ch