Wi-Fi

Tethering your phone's data connection to your laptop (and the fact that the iPhone can’t do it – thanks AT&T) is all the rage right now, but despite the convenience of the mobile Web, such connections are still comparatively unreliable. But the geeks over at Microsoft Research have come up with Cool-Tether--a seemingly obvious, yet novel way to pool multiple cellular data connections into a single, faster and more reliable Wi-Fi hotspot that can be shared by all.

Routers are the middle-men of our wireless networks; without them, our Wi-Fi gadgets (laptops, hard drives, cameras, printers, whathaveyou) can't talk to each other. But routers, like most intermediaries, don't make anything easier -- not at all. A new Wi-Fi standard is on the horizon that will let our devices talk to each other directly. Ain't that sweet?

Time for everyone at 113 East 38th Street* to ditch the cameras, because researchers at the University of Utah have found a more subtle way to spy on your neighbors: Wi-Fi. By measuring the resistance to the radio waves that transmit wireless signals, the scientists can monitor whether or not someone is in a room at a given time.

HP is hoping there’re a lot of people out there with mass printing needs but without regular Internet access. Their new PhotoSmart Premium printer has a Wi-Fi-enabled touchscreen on the front that allows a user to print directly from the Internet. The idea is that the printer would be a quick way of printing out online directions, pictures, movie tickets, and so forth, without the need of a computer.

In its attempts to quash weapons of mass destruction, the Pentagon has been trying novel ways to track down dangerous materiel. For years, DARPA has been trying to train insects and bugs to sniff out toxic substances, providing more sensitive detection, as well as access that conventional sensors might not have.

Following through promises made back in January, Best of What's New winner Eye-Fi today released new Wi-Fi-equipped SD memory cards that that upload videos, as well as photos, to the Web.

Someday soon there'll be a chicken in every pot and a centralized media center in every home. Till then, we're stuck with what we've got; some companies are rising to the challenge. Golden Signals, which debuted DisplayShare this week, is one of the more innovative: its wireless TV-computer linkup utilizes your existing gaming console and router.

Install the $50 software and your computer begins creating a realtime video of every action occurring on the desktop. By simultaneously commanding the console (currently only Playstation 3, but a version that works with the Wii and Xbox 360 is expected by summer) to stream the video on TV, DisplayShare allows you to view anything you'd see on your computer on the big screen.