Nokia is expected to launch a new touchscreen smartphone designed to rival Apple's iPhone this week.

According to Reuters, the device, which is thought to be called Tube, will be launched on Thursday and is likely to feature GPS, Wi-Fi connectivity and support for Java and DVB-H mobile TV broadcasts. It will run using the Symbian S60 OS.

"The phone is extremely important," Gartner analyst Carolina Milanesi told Reuters. "We have been waiting for the market leader to respond to Apple's iPhone for a year and a half now. There is a lot of pressure on Nokia."

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