Pi Zero W is the new brain of the Open Cycling Computer. PiTFT 2.8" capacitive dosn't work out-of-the-box, but required modification are very simple.
Modifications required in /boot/config.txt
1. Uncomment dtparam=spi=on
2. Add dtoverlay=pitft28-capacitive,rotate=90,speed=32000000,fps=20
Modifications required in /boot/cmdline.txt
1. Add after rootwait (the end of line) fbcon=map:10 fbcon=font:VGA8x8 logo.nologo
That's it! No other modifications are required.
P.S. 31-Mar-2017: Do not install adafruit kernel as it doesn't support bluetooth/wifi on Pi Zero W yet.