Honestly, if it works only over LAN, I wouldn't be too interested, because if my phone is connected to my local network. it means I'm in my apartment and could just walk over to check or VNC in (VNC is fairly fast and responsive over LAN). If you could get it to work over the internet, then I see some point to it. I can monitor my temps etc, and over 3G VNC can be a little slow. Of course, there would be port forwarding issues for those behind routers, but I trust that those who are interested and monitor GPU temps remotely via their phone would definitely not have any issues forwarding a port.