Nice.
With a couple of resistors and a transistor you could provide a current limited output that would then be ideal for strings of LEDs that don't incorporate resistors. You would also increase the gate resistor - which doesn't need to be this low since rapid switching is not necessarily what we're after.
You would place a current sense resistor in the source, the emitter and base of a small NPN transistor across it (emitter to ground, base to source) and tie the collector to the gate. As the drain current increases so that the current sense resistor drops 0.6V, the transistor turns on, robbing current from the base, thus lowering the voltage and turning it off a little.
The slight negative feedback caused by the source resistor would not dramatically alter the performance of the device.