Ever since the release of the VirtualBox 2.1.0, I've been wanting to try it out. Today, I finally decided to kill a part of the holiday and give it a first run.
I looked around on the website but didn't find separate installations for the open source edition and the regular edition so I just clicked away on the only link for the VirtualBox Windows x86 version I saw. The installation popped up a few driver signing warning dialogs which was pretty annoying, but apart from that the installation went without any concern.
I then whipped up a quick guest setup for Ubuntu with most of the default options but without the virtual hard drive setup, I tossed in my Ubuntu bootable DVD and off I was. I noticed after bootup that Ubuntu didn't detect the sound hardware from within VirtualBox. Also, the Windows-Tab keyboard combo for switching between windows Vista-style didn't seem to work when Ubuntu ran within VirtualBox.
I noticed the status bar of Virtual Box displays if the mouse has been captured by VirtualBox, which is a pretty neat feature - it also indicates the 'host' key to un-capture the keyboard and mouse.
When I finally close a VirtualBox guest window, I popup dialog prompts me to shutdown or save the state of the guest virtual machine - that's a pretty neat feature, especially since Ubuntu takes so long to boot off the DVD.
I find VirtualBox pretty responsive compare to some other virtualization software that I've tried. The fact that it is open-source ought to make it more appealing to some. Over the next couple of days I'll be running Ubuntu within VirtualBox so I'll post about any glitches if any happen to show up.