Sebastian forecast the device could sell 3m units in its first year.

Considering the prices the devices are selling for, they had better be.

The device, he said, can eventually sell for as little as $50 and be used in the home.

The devices, which couple to telephone lines and work with the push of a button, will sell for $1,195 later this year.

The device, which was introduced in March, is selling briskly, he said.

This new device will probably sell like - well, iPods.

The device will sell for $160, but no price has yet been put on the service.

The devices generally sell for about $5 and are in most cases purchased by the students along with their books.

As of mid 2009, the device sells for approximately A$188.00.

Those devices each sold less than a million units in their first year.