  A prototype of Loongson IoT (Internet of Things) ZigBee gateway is already
designed and implemented. However, this prototype is not perfect enough because
of the lack of a number of functions. And a lot of things should be done to
improve this prototype, such as adding widely used IEEE 802.11 function, using
a fully open source ZigBee protocol stack to get rid of proprietary implement
or using a fully open source embedded operating system to support 6LoWPAN, and
implementing multiple interfaces.
