Dual boot is basically running two or more operating systems on a single machine. During bootup, you are prompted to select which OS to boot from.
Pretty much ideal for people who need both Windows and Linux for different things, but it can work with any OS pretty much.
Anyways, I'm downloading it right now, I'll have my hardware possibly in a week so I'll try it out then.
Intel C2D E6320 / AMD Athlon X2 3800+
Gigabyte 965P DS3 / DFI nF4 Ultra-D
2GB OCZ Gold PC2-6400 / 2GB OCZ Gold PC4000
eVGA 8800GTS 320MB / eVGA 6800GS 256MB
150GB Raptor / 74GB Raptor
2x500GB / 320GB
OCZ GameXStreme 850w / OCZ StealthXStream 600w