As a user who as been following the story on/off since the OpenBeos days, I am getting tired of seeing posts like “Is Haiku Dead?”, overly negative comments to any bits of news providing indications of progress towards R1, or recurring comments about needing first more system developers OR need more application.
Yes, I wish that the pace of progress would be faster than currently experienced.
I have looked around and here is how Haiku appears to be in comparison to other OS recreation projects:
Haiku - Started 2001 (BeOS recreation with improvements)
Last forum post: today
Last stable release: R1 Alpha 4.1, 14.11.2012
ReactOS - Started 1996 (Windows recreation)
Last forum post: 17.09.2015
Last stable release: 0.3.17, 5.11.2014
OSFree - Started 1996 (OS/2 recreation)
Last forum post: ?
Last stable release: 0.04.7, 26.08.2011
Voyager - Started 1996 (?) (OS/2 recreation)
Last forum post: 12.10.2015
Last stable release: ? (does not appear to be a full stable release available)
MorphOS - Started 2000 (AmigaOS recreation)
Last forum post: ?
Last stable release: 3.9, 19.06.2015
As Haiku is a bit of an hybrid - attempting to maintain compatibility to BeOS and yet introducing improvements over it, a fairly comparable point of reference would be Syllable Desktop (formerly AtheOS):
Syllable - Started 1994 (as AtheOS) (inspired by AmigaOS plus other OSs)
Last forum post:19.12.2012
Last stable release: 0.6.7, 12.04.2012
So, all things considered, Haiku is pretty much alive.