This is a semi-live demonstration of a user interface for a UPS (uninterruptable power supply). Two small applets each show some status information of the UPS. The advantage is clear: you can check your UPS status, and do tests on it, from any location in the world where you have an internet connection. Of course, a similar applet can be created for any SNMP peripheral, since the applet contains a general SNMP stack.
The live demo connects to the SNMP agent for the UPS. For this semi-live demo we have replaced the SNMP stack by a random number generator.