Waste of time. Half-Life is already playable on Linux and there is no financial motivation in porting it.
This seems to be turning into petition-mania. We must be in the slow season.
Besides, this subject has already been discussed in the forums. Are we going to be making Amiga "news" by starting all sorts of half-baked petitions now?
(In case you can't tell, I'm getting sick of petitions and sick or people whining "I want xyz game or application ported to the Amiga". Do you think the lack of ports is because no one can think of what to port?)