Starting with Acrobat DC version 12.0, Acrobat Pro started its foray into the virtual reality world. First up was Acrobat Reader VR Edition, followed by Acrobat Pro. Acrobat Pro is not the first virtual reality product to come from Adobe, as their Adobe After Effects CS product already supports VR. Desktop version of Reader DC, Pro and Acrobat Pro now supports 3D environments inside the PDF document which is much more attractive and interactive. The full version of after effects can not even do some of the things that high quality Adobe Acrobat software could do. Reader DC in both portable and offline flavors has pretty much Adobe Acrobat X-like features, so the Adobe Reader family is not being replaced.
The term Adobe Acrobat is misleading some of the time, because the Acrobat product line includes products ranging from document viewers to databases and text editors. Unfortunately, the Acrobat Reader family is often found inside viruses and hackspaces, and is one of the most compromised application families of the last years. UPDATE (November 2013): Some of the earlier releases of Reader XI Offline can be used to execute code on the victim machine. Restoring the portable version of Reader XI Offline from a backup is a simple way to fix this issue. d2c66b5586