Great news !
Installing with my little script
https://github.com/aussiehash/Bitcoin-for-SBCArmory 0.92.3-beta appears to work perfectly on a Pi 2, latest Raspian, no cross compiling required.
Starting armory in offline mode, creating a new wallet, split backup all work correctly. Have not tried to offline sign a transaction.
Edit : updated script to 0.93 offline bundle, now working on Pi B / B+ / Pi 2 raspbian wheezy + BBB debian wheezy / BBB ubuntu 14.04 + ODROID C1 ubuntu 14.04