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The mobile phone industry has changed quite a bit since 1998. Back then, most consumer cell phones weren't "smart". They were simple phones that couldn't be programmed, didn't have Web browsers or cameras, and had limited storage. Although you could send digital data over the voice connections, cell phones didn't offer data-networking services. Edge, GPRS, Bluetooth, i-Mode, USB, and Wi-Fi weren't available for consumer phones, and there was considerable debate within the industry about whether the smart phone could ever replace PDAs such as the Palm Pilot and the Psion Organizer.