Anybody else notice this?
The problem is that ATVFiles is currently incompatible with ATV v2.2; here is what I did to restore ATVFiles capability:
Factory Restore to v1.0
Apple Upgrade to v2.2
Make ATVFlash Patchstick v3.34 that ONLY adds SSH capability
Follow these instructions to downgrade to AppleTV v2.1: http://wiki.awkwardtv.org/wiki/OSupdate
Make ATVFlash Patchstick v3.31 and upgrade ATV.
Now I have ATVFiles that is working again…