Clockwise from upper left:
- iPhone with earbuds plugged in for phone calls
- Old-school taxicab meter with card swipe reader
- Prius in-dash energy monitor
- Nexus 7 (for GPS?)
- HTC One running Flywheel cab hailing app
- In-dash digital dumb clock
Edit: Just paid for my ride. The iPhone is also the host device for a Square credit card reader, not shown, which he attaches when he needs to. It is probably more reliable than the one attached to the meter.