Yes, I ported a few tools to Android and worked on a few Android ports to random devices (Motorola Defy and Ainol Novo Advanced 8 being the ones I was most involved in). With regard to the problems of the "Play store" requiring $things I'm not affected since I do not use it, there is no Google-proprietary software on any of my devices. If I ever need something from the store I get it anonymously through Aurora Store. Maybe this is why my opinion of/experience with porting *nix tools is less negative?