Best to wait until the digispark arduino library is open source. They\'ll be shipping in a week or two if all goes to plan, so that\'ll be quite soon.

I don\'t think digispark works with avrdude, so you\'ll likely need to bundle in another upload tool to support digispark. Aside from that, it\'s just a regular attiny85, so you can look to existing tiny85 arduino projects for information on that. One thing which isn\'t known yet is the precise clock speed, so prepare to handle some last minute adjustments there. It\'ll probably be 16.5mhz - it definitely will be that for any projects which use V-USB to talk to the host computer.