“iMac comes from the marriage of the excitement of the Internet with the simplicity of Macintosh. We are targeting this for the no. 1 use that consumers tell us they want a computer for, which is to get on the Internet simply and fast.”
Basically the 'i' stands for INTERNET! Interesting! I kind of assumed it stood for me - I. Like I use the phone! I+Phone= IPhone but nope!