we did it! worked totally fine with a windows 7 laptop and a Macbook Pro even without a cable connection. It was embarissingly easy. First we tried to setup a network between the two devices with a tutorial but it seemed quite complicated and time consuming so we opted for just trying it out without any network setup. both devices were in the same wlan and we had the ip adresses of them both. first the firewalls made trouble so we disabled them. tried it one way (windows host, mac client) did not work but the other way around it worked fine.
Thank you very much for this amazing game. you achieved something very different from other games. we had a blast.