I've mainly been calling it ZALARM up until now but ALARMZ or ALARMz is arguably slightly better in that you can say it a little bit faster, it's almost a real word an it's at the start of the alphabet instead of the end!
I agree that the new forum should probably be called just "Arch Linux ARM" so people will know what it is on first sight but I propose 4 semi-official distro-specific monikers coz we're too good for just one:
ALARMz
ALARMZ
ZALARM
zALARM
The ALARM bit is always capitalized as the ALARM team like it that way and we should try to keep them happy!
EDIT
I think the IRC channel should be #ALARMZ
Well, lets make a decision then.
If ArchiMark could create a sub-forum called "ArchLinuxARM" and appoint you and me as moderators, so we can pin topics etc, that would be a start.
Alternatively we could move to the ALARM forums, but being OESF veterans, I guess we like to stay here ...
IRC : well, go ahead and create the channel. l am ready to join.