- Is there still a 2 GiB ext2fs disk partition limit?
- Is there a 64-bit version?
- binary compatibility
- what hardware is supported? What drivers does GNU/Hurd have?
- Does Hurd support FUSE?
- network transparency
- POSIX compatibility
- 830 MiB RAM Limit
- Are SATA disk drives supported?
- Sharing the userspace between GNU Hurd and the Linux kernel
- Does GNU/Hurd support SMP/Multicore?
- What software is available for GNU?
- Doing a GNU/Hurd System Port