A Global Positioning System can tell a driver a lot of things — but apparently not when a train is coming. A computer consultant driving a rental car drove onto train tracks Wednesday using the instructions his GPS unit gave him. A train was barreling toward him, but he escaped in time and no one was injured.

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Dell has flaunted this gorgeous monitor for a while in various trade shows and press events, always saying that it’s just a design concept and not available yet. That all changes now, because the 22-inch Dell Crystal LCD display is suddenly a real product.

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I just read about a new Application called Twibble. It’s a Twitter application and it allows you to add your current location when you send an update to twitter. This is done by using the built-in GPS on your mobile. I read the comments on it and it does seem to work, so I think it’s worth a look at. Click here to find out more.

After you have opened the page it’s just below the updates…

It has been reported that by 2011 a single hard drive will be able to store up to 4TB (4 terabytes).

This is all thanks to the Japanese firm Hitachi. Hitachi has successfully shrunk the read-write head of a hard drive to that two thousand times smaller than the width of a human hair.

This is a new innovation in technology; with a 4TB capacity, a hard drive will be able to store over a million songs.

On a hard disk, data is stored digitally as tiny magnetised region, these are called bits. The closer the magnetised regions are packed on a disk is the more data that can be saved on that disk. As a result magnetised regions are packed ever closer, which means smaller read-write head are need to read the data.

At present a hard disk can store 200 GB (gigabits) of data per square inch, but Hitachi believes it can store up to 1 TB (terabit) of information per square inch.

Hitachi has discovered a way of reducing noise and boosting signal output when using GMR heads (a method in which to read more densely-packed disks) and so increasing the density of data on a disk than can be read even further.

“We changed the direction of the current and adjusted the materials to get good properties,” said John Best, chief technologist for Hitachi’s data-storage unit, in an interview with AP. “

“Hitachi continues to invest in deep research for the advancement of hard disk drives as we believe there is no other technology capable of providing the hard drive’s high-capacity, low-cost value for the foreseeable future,” said Hiroaki Odawara, Hitachi’s research director, at its Storage Technology Research Centre.

Hitachi hopes that by 2011 it could release a hard disk for desktops with 4TB of storage and a laptop with a 1TB drive.