i see some confusion here.
according to your log files i reckon that Asus notebook has "Intel Corporation Centrino Wireless-N 1000" (supported by iwlagn driver) while Acer has "Broadcom Corporation BCM4313" (supported by brcm80211 driver).
question: why are you blacklisting iwlagn driver on Acer notebook?
please do it on Asus instead.
second thing:
as per http://pastebin.com/EdFnPyF1 i see that you were testing new kernel-firmware on Acer while broadcom-sta-xxx.xzm module was still activated during boot.
please remove that module, boot into always fresh with base module + kernel-firmware only.
please make sure you are doing this test on porteus-1.1 (with updated 3.2.4 kernel) and not porteus-1.0
good luck
Posted after 4 hours 26 minutes 13 seconds:
Porteus-1.2-rc1 is out and contains broadcom-sta included by default. Intel firmware is also updated to latest version so please try it on both notebooks and tell me that everything works out of the box

cheers