Demanding Amazon fix something that isn't broken and politely asking them to add a new feature is two very different things. The latter should be the case here as Amazon never claimed to have this ability with any Kindle. PDFs tend to be bloated files filled with lots of Adobe waste material (to put it politely). I don't blame them for limiting the download of large files over a 3G system that is provided free to the K owner. Whispernet was included to allow downloading of Amazon books and any other use is a gracious and free present from Amazon, who BTW still calls the browser expermental meaning that they can take it away anytime they choose. The browser has never been advertised as full fledged feature.