I would be interested, first to support Dave's attempts to educate people in the fun of electronics.
Second, a precision supply with accurately adjustable voltage and current would be a plus. For me, around the 5V mark would be fine because I am generally testing microcontrollers.
Third, the inbuilt current measurement would help overcome the almost impossibility of buying the uCurrent device, of which the last batch arrived, and sold out, between about midnight and 8 am local time, when I was asleep.
Finally, if necessary, the circuit could be extended (eg. monitoring of the levels via I2C messages), to give data logging capability.