It's now on iOS!
Hey there, tanks for your reply! How rude of me to not answer in a timely manner... Just wanted to tell you that I'm shocked about how addicting and relaxing a game about highway interchanges can be. You truly scratched an itch I didn't even know I had. The update that introduced the undo feature increased the replay-ability to such a level where I find myself playing highways for hours every other day - still to this day! Thank you so much for all the joy you brought to me with this game and the unexpected update and keep up the great work!