PDA and a cellphone were always been tried to be merged. If something is close to a cellphone rather than PDa then its a smartphone eg Sonyericsson P910. While if a device is closer to PDA than a cellphone then its called a PDA phone eg i-mate JAM. Usually PDA phones were big in size, heavy in weight and were bound to specific networks while i-mate JAM changes the concept by bringing a smart, light and sim-free solution to the market.

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