Man... I used to cry every time I thought about the beauty VMWare is about virtualization. But now, I have another one to cry for: VirtualBox.
First of all it is OpenSource. Only this is already a motivation by itself.
Second: It flies!!! I know VMware is very fast, but VirtualBox is a piece of magic. I don't know how to describe it. It is very fast, runs very smoothly and consumes very little resources!! I think there is no need for saying that I'm very excited with VirtualBox, is there? :)
Third: Starting with 1.6.0 It has support for Seamless integration for GNU/Linux and Solaris guests!!
Man!! Seamless integration is the next step in the way of virtualization... It is really nice!!
I'm doing some tests here and it works very well!
I'd like to thank you VirtualBox developers. And I also would like to say that Sun did a big step in the right direction buying VirtualBox. I hope many more features come and that 1.6 version is just the first of many excellent releases!
P.S.: Please, don't take me wrong. I'm a big fan of VMWare, I even have a 4.x license I bought to be able to compile Npgsql on MS .Net. But now that I have VirtualBox, I think that license will not be used anymore soon.