Similar to Filesystem_in_Userspace

Google Native Client

GPhoto

Gretl

GThumb

Hibernate (framework)

Illumos

IntelliJ IDEA

Iptables

K3b

Kali Linux

Kawa (Scheme implementation)

Kernel-based Virtual Machine

Banana Pi

BeagleBoard

Container Linux

Linux-libre

OpenEmbedded

Openmoko

The openSUSE Project

DRBD

13th century BC

1st Marine Infantry Parachute Regiment

I Corps (South Korea)

3rd (UK) Division