Mobile computing does not simply extend to the wireless laptop or PDA,
although most Wi-Fi implementations are set up to communicate to
these devices. In fact, wireless mobile computing is already evolving into
something much…smaller.
Already, we see Wi-Fi being used in high-speed information retrieval
systems for cellular telephones. Mobile phones used to be able to send
and receive short messages that displayed news and information about
current events. E-mail and instant messaging play a large role for
“smart phones” too.
Today, mobile phones are evolving to act as true wireless replacements
for the modem. Higher-speed wireless network deployments allow a direct
connection from the mobile phone into your laptop or handheld computer.
Higher speed is not only useful for data transmission, but mobile
phones are now sending and receiving graphic images for full Web browsing
as well as image transfers. As the speed of Wi-Fi networks increases,
it will be possible to raise the rates of real-time video so that each mobile
phone user can see the person he is talking to. At present, only a few
frames per second are possible, but as wireless network bandwidth
increases, real-time video will be possible in the not too distant future.
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