Indeed, I installed Haiku yesterday with Virtualbox and you can attach the 2Gb partition they provide with the compressed vmdk image. I'm quite impressed by the OS, although it's a bit buggy at the moment. I want to install the KDE4 applications provided by the TiltOS project, it looks pretty neat. I'm curious about its performance when installed on real hardware; without the guest additions it's already very snappy when running virtualised.
No announcement yet.
Haiku OS Makes Way With Second Alpha