App Disillusionment

Note that all of these apps would be forbidden under Apple’s rules. Snapz created a global hotkey that was active in all applications, Audion drew its faces1 on top of other applications by capturing a screenshot to create the kinds of alpha channel effects that have become commonplace on modern systems, RAM Doubler is an obviously terrible hack that nevertheless helped a lot of people get more out of their 4 megs of RAM than they could have otherwise

Worth the read but what is truly terrible is that anyone ever had to live with only 4 megs of RAM. Yes, I know it went a bit father then than it does now - but still.