The Touch 10 is obviously a wired solution, either connected to the codec directly or via LAN. You could use a third-party control system such as Crestrin or AMX and create you're own touch panel to control the SX20 using one of their wireless panels. However this can get costly due to the needed hardware and programming just to have a wireless solution if you don't have all of this in use already, if so, you could simply tie into.
There use to be one company called Vyopta that provided a touch panel interface using mobile devices called vControl, but it appears to their website they're strictly on the analytics side of conferencing now.
