Lowest supported memory for pfSense 2.1

[phil.davis]

This old sticky post in hardware warns not to use systems with less than 128MB RAM: http://forum.pfsense.org/index.php/topic,1712.0.html
Are there 128MB  systems that will run pfSense 2.1 base and boot OK and run basic routing and pf'ing?
If not then;

1. What should be the minimum supported memory? (256MB?)
2. Various memory checks in bootup code need to be revised so they make sensible decisions/spit out sensible warnings based on current memory needs of pfSense 2.1/FreeBSD 8.3.
   Comments please…

[doktornotor]

Afraid 128MB of RAM will break as soon as you start blocking the IPv6 bogons.

$ wc -l /etc/bogonsv6
79175 /etc/bogonsv6

BTW, some use cases should be easy to test using hw.physmem="128M" I guess.