Adobe is notifying Acrobat.com users of changes taking place at the beginning of 2013, including the ability to create PDF files being stripped out of the latter as well as Adobe ConnectNow being removed entirely.
PDFs are the lingua franca of the business and academic worlds. Up until relatively recently, creating one required either pricey Adobe software or clunky workaround third-party solutions. And that's on the desktop. In the world of iOS, we have options from the clunky to the elegant. It's just a matter of figuring out which one is which.