Description Booldroid
The Android robot is not only the cute mascot of possibly the most popular operating system manufacturer for mobile devices currently available on the market - as you can see on the shirt Booldroid, it can do much more: You just have to modify its head a bit and it represents Boolean functions in several logic gates.
The heads are approximately based on the circuit diagram symbols US ANSI 91-1984 (American National Standards Institute):
Android stands for the AND gate,
Nandroid stands for the NOT AND gate,
NOTdroid stands for the NOT gate, and
ORdroid stands for the OR gate.
With an Apple, this would only work with both time- and cost-intensive genetic manipulation, and even then the end result would not be half as illustrative as with Booldroid ;-)
IF you are both a smartphone owner AND a follower of ever-true, unerring logic, THEN this shirt is just right for you :-)