VMware Workstation 5.5
This is desktop virtualization software for software developers/testers and enterprise IT professionals.
It allows users to run multiple x86-based operating systems, including Windows, Linux, NetWare, and Solaris x86, and their applications simultaneously on a single PC in fully networked, portable virtual machines- no rebooting or hard drive partitioning required. It drastically accelerates the software development/testing process, increases user and team productivity, and enables hardware consolidation.
A 30-day serial number is required to use the software. After installation, on the user interface go to Help > Enter Serial Number and click on "Get Serial Number"
VirtualBox makes it easy to create virtual machines. view it
You can alter virtual machines settings with VirtualBox view it
Moving your virtual machines into Parallels Desktop view it
If you want to know everything about your iPhone, here's where to look! view it