Hotline impressed me most because they wrote cross platform mac and windows servers and clients. If I recall correctly - back when MacOS didn't have true pre-e

Hotline impressed me most because they wrote cross platform mac and windows servers and clients. If I recall correctly - back when MacOS didn't have true pre-emptive multiprocessing, holding down a menu or a button would stall other processes/tasks. Hotline wrote custom controls so you could hold a button and things would still run.