Right. My WSQ50's decided to stop working requiring a full factory wipe in both the Zyxel Android app and the access points. Enough was enough.
I stripped one down, found a 3.3v serial UART, managed to get into it (love the lack of security, the root password was 1234) and discovered there's already a bastardized Attitude Adjustment release on there (12.09-rc1) already loosely based off IPQ4019. Zyxel have just removed any UI and config / updates is done via a custom binary that phones home.
Here's a dump of some crucial info;
root@WSQ50:~# cat /etc/openwrt_version
12.09-rc1
root@WSQ50:~# cat /etc/openwrt_release
DISTRIB_ID="OpenWrt"
DISTRIB_RELEASE="Attitude Adjustment"
DISTRIB_REVISION="unknown"
DISTRIB_CODENAME="attitude_adjustment"
DISTRIB_TARGET="ipq806x/wsq50"
DISTRIB_DESCRIPTION="OpenWrt Attitude Adjustment 12.09-rc1"
Happy to try and help get this device official OpenWRT support but not quite sure where to start.