Indeed. The "Clamshell" iBook G3 [0] (aka Barbie's toilet seat), introduced 1999, had WiFi capabilities (as demonstrated by Phil Schiller jumping down onto the stage while online [1]), but IIRC, you had to pay extra for the optional Wifi card.

[0] https://en.wikipedia.org/wiki/IBook#iBook_G3_(%22Clamshell%2... [1] https://www.youtube.com/watch?v=1MR4R5LdrJw