There’s also my old BeFull launcher, which worked on BeOS, and last time I tried, also worked on Haiku.
The full-screen source is there (no binary) and the replicant binary is there (no source.)
Maybe a bit ahead of its time, but I still prefer the “all on one screen” feel to Windows 8’s thing where you have to scroll horizontally. At least for how many apps I had in my menu.