Daring Fireball’s John Gruber’s take on one of the many reasons why Apple’s Newton failed:
The Newton was a pre-Internet concept that debuted at the start of the Internet revolution. All modern computers are now seen as communication devices. The Newton wasnâ€™t designed around that. Iâ€™m not arguing that Apple should have somehow invented Wi-Fi in 1993, but rather that the lack of any wireless IP networking was the biggest factor that kept the whole concept from being compelling to enough people to make it a hit. The Palm Pilot wasnâ€™t any more of an Internet device when it debuted, but it didnâ€™t have to be, because it cost less.