While I played games on mine, the software I was working on was going to be a BBS/terminal followup to my C=64/128 software (which supported music, animated characters, sprites, joysticks, etc - info and video can be found here http://www.atariage....st-from-the-past/ )
The Amiga version was going to add background file transfers to the mix. Basically you would queue up file transfers(both up and down) at the start of your call, then access the forums, play games, etc. The files would transfer in the background during idle time (all data was going to be sent in packets with the file transfer packets at the lowest priority). Work on that got derailed when I discovered the internet at UH and realized BBSes were going away.