I have never tried Jibbed myself but I noticed the release in distrowatch. Jibbed 6.0 is a bootable live CD based on NetBSD 6.0. It includes a complete NetBSD environment, automatic hardware detection, compiler sets, provides features like tmpfs to simulate read-write access on read-only media and more. You can read release announcement here. Jibbed is amd64 (x86_64) only from this release. It also runs in VirtualBox, VMware or QEMU so you can try NetBSD without installing it or even rebooting (but you can’t install system to hard drive using this live CD, you need to download official system images).