Yeah, bit banging I2S would be gross. You could, however, use the PWM outputs for audio as long as the requirements aren't too strict. And of course, you could

Yeah, bit banging I2S would be gross. You could, however, use the PWM outputs for audio as long as the requirements aren't too strict. And of course, you could always implement it with extra hardware. Hoping for I2S on the next version :)