... also, since the board is running an operating system, can it establish two instances of WiFi connection, one as the client and the other as the server? ...
can you, though, force both? can you make the Yun act as an Access Point while connected to your home router, for example, through the ethernet?
config interface 'loopback'...config interface 'lan' option ifname 'eth1' option type 'bridge' option proto 'static' option ipaddr '192.168.0.239' option netmask '255.255.255.0' option gateway '192.168.0.1' option dns '192.168.0.1'
Kernel IP routing tableDestination Gateway Genmask Flags Metric Ref Use Ifacedefault 192.168.0.1 0.0.0.0 UG 0 0 0 br-lan192.168.0.0 * 255.255.255.0 U 0 0 0 br-lan
/etc/init.d/dnsmasq disable/etc/init.d/dnsmasq stop