Are you a geek and proud of it? Well you're not nearly geeky enough unless you have one of these Wi-Fi Detector T-shirts.

Wearing this little number you'll need naught more than a glance down at your chest to find out if there's a hotspot in your area strong enough to offer access to the internet via your notebook/mobile phone/PDA.

Ok we're not sure if this is a joke or whether some opportunist is just having a go, but if it is a ruse it's so elaborate we just had to share it with you.

Bopaboo is a music download service that offers DRM-free music at far lower prices than you'll find elsewhere - as low as 25c per song in fact. How do they do this? Because the music is second hand. Yep, you read it right.

Someone has decided that people are going to want to sell MP3s that they've already listened to or don't want to other people and that other people are going to be willing to buy them.

Roberts plies a good trade in all things radio, and recently announced another DAB model with a bit of a twist.

The RDK-2 is a 'kitchen radio' designed for people without a lot of surface space and can be fitted underneath a cabinet or in some other appropriate place that's tucked out of the way.

It offers DAB and FM playback with touch-sensitive controls aboard an easy to clean control panel, so getting your greasy fingers all over it while you're cooking isn't so much of a concern.

We recently enjoyed the AeroSpider anti-gravity remote control car but now here's something actually useful, an award-winning window cleaning robot.

Winboni, a wee little square robot built by some clever mechanical engineering students in Michigan State University, suckers itself to your window and, without any window cleaner, scrubs the window all sparkly clean with felt pads. It runs off AA batteries and the name was inspired by the Zamboni machine, used to clean the ice at hockey rinks.

The robot measures 5in long, 5in wide and just 2in tall. It took the team five tries and 900 hours to meet contest specifications.

The move by the consumer electronics giant flies in the face of tough trading conditions for retailers and cash-strapped consumers but, Sony said the weakening Sterling has forced its hand. Gamers may sigh with relief though as the price hikes will not be applied to the PS3.

A Sony spokesman told The Telegraph:

"Sony UK can confirm that in the past 48 hours it has communicated to its trade channel that due to adverse changes in the Yen/Euro & Euro/Pound exchange rate over the last six months, and with this uncertainty set to continue into 2009, Sony will increase the trade price of a number of products over the coming months."

"The precise level of price increases has not yet been agreed, but it is likely that the vast majority of products affected will see increases of significantly less than 33 per cent. As these testing trading conditions continue, Sony does not believe that it will be alone in taking this form of action."

In fact, Samsung, while happily revealing lots of fabulous OLED display breakthroughs lately [here and here], says LCD will be kicking OLED's ass in the TV arena for years to come.

Samsung's vice president of flat panel development, HS Kim, told What Hi-Fi Sound & Vision:

Still, a billion mice is a lot of 'mouses', and Logitech has been running them off the production lines since the early 1980s.

Rory Dooley, Senior Vice President, Control Devices at Logitech says:

"When all of this started for Logitech back in the early '80s (PDF), the mouse was primarily a tool for CAD (computer-aided design applications). Since then, the mouse has become something much more - it is truly the key to the kingdom - the device that unlocked the power of the computer for the many of us who don't write computer code. The mouse opened up computing to the average person by providing a simple, intuitive way to interact with the computer."

Back in October Microsoft showcased a pre-Beta version of Windows 7 at its Professional Developers Conference, and it just recently been confirmed that the full Beta should be available next month.

Those who register for and attend one of the upcoming MSDN developer conferences will get a DVD with Windows 7 Beta 1 on it, though since these start this month the handout will only come into force during some of the later events in January.

Despite the Department for Transport advising that motorists consume precisely no alcohol before driving, people still do and the portable breathalyser has seen some success on this basis alone.

I bet you never thought you'd have to blow into your iPod to see if it's safe to drive though, but the latest accessory for Apple's player, called the iBreath, requires that you do just that.

The demise of Woolworths is a sad day for those who see it as a staple part of the old
British high-street, not least for the thousands of people that stand to lose their jobs.

The knock-on effect of its supplier Entertainment UK going into administration has now reached Virgin Megastore metamorphosis Zavvi, who has been forced to stop selling CDs, DVDs and games online.