ACID is, as its full name says, a CentOS system that gets installed on a hard disk. ACID is just one of many(?) Asterisk install system; however, ACID is geared more specifically towards Allstar than telephony though it does have that telephony element.

Limey Linux is an embedded system install that gets loaded onto compact flash card and run from a ramdisk, no hard drive.

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Randy Hammock KC6HUR
http://kc6hur.net/~rhammock/
http://irlp.kc6hur.net/
If there are no horses in heaven, then when I die, I want to go where they went.