This is my first project with the digispark. I ordered two more after trying my first one. I was pleasantly surprised that IDE and drivers worked first try, no hassles! Direct USB plug-in is a huge bonus! I've used the MSP430 and Arduino boards which can be very frustrating to get running.
Anyway, here's my project: a compact 60 volt LED strobe for RC cars.
http://www.youtube.com/watch?v=tPuoTl6Q_t0