It's Friday, and if you're like me there is some question of what game you're going to play over the weekend. Or maybe you're looking forward to playing with your children or spending time with your wife? You should scuttle any plan you have of going outside into the daystar, because we have something very special to give away.

Macs are often the black sheep in the many enterprise environments which have been dominated by Windows for nearly two decades, but the growing consumerization of IT is slowly changing that perception. Though Macs often have a higher up-front price than many business-class PCs, Macs are usually believed to have a lower total cost of ownership (TCO) due to lower support costs. A recent survey of IT professionals in large enterprise environments that have a mix of Macs and PCs overwhelmingly agree that Macs cost less than PCs to support.

The .xxx domain is back on the table. The Internet Corporation for Assigned Names and Numbers (ICANN) will reconsider the top-level domain during a meeting in Kenya this week, nearly three years after it was shot down and nine years after it was first introduced as a way to identify pornography sites and hopefully confine them to their own Internet red-light district.

Valve has been getting clever when its announcements recently. The company has intrigued fans by placing hints of something in an update to Portal, and gamers are still following the clues to see how deep the rabbit hole goes. The next announcement? It looks as if Steam is coming to the Mac.

Valve has been sending cryptic images to a number of sites, using its characters and properties to create faux Apple-looking advertising. Francis is talking about "hating" different, Gordon Freeman is wearing iMac colors...

As we continue to carry around items that insist on requiring electricity to work, portable—even wearable—energy-generating systems are looking very attractive. A group of researchers has recently looked into the use of piezoelectric materials, which generate an electric field or potential when placed under mechanical stress. By placing these materials on a rubbery or flexible surface, they created a material that can generate the highest rate of energy conversion reported for similar systems.

Portal's eerie symbolism was ramped up another notch this week when Valve announced a patch that has gamers playing what seems to be an alternate reality game within the platformer.

"Firefox is on a decline. It may not be as steady as Internet Explorer's death spiral, and it certainly has not been going on for as long, but if the last three months are any indication, Firefox will never hit that 25 percent market share mark that looked all but certain just a few short months ago. Meanwhile, Chrome is still pushing steadily forward; in fact, it was the only browser to show positive growth last month.

Between January and February, Internet Explorer dropped a significant 0.60 percentage points and Firefox slipped 0.18 percentage points.

Super Mario Galaxy 2 may have started life as an extension of the original game, but the content shown at Nintendo's San Francisco media summit makes it look much more like a full sequel... hence the numbering.

Take a look at the newest trailer and see what you think.

"A few days ago I wrote about the claims that Windows 7 was a memory hog, and that Windows 7 systems tended to be short on memory. The claims were made by "Craig Barth," CTO of Devil Mountain Software, a Florida-based company that has a small utility that collects Windows performance data and sends it to DMS's servers, where it is then collated and interpreted.

For its part, DMS was unimpressed with our coverage. "Company representatives" made a blog post "rebutting" my original coverage.

"Most of our readers can identify with the problem of having too many devices that charge over USB and not enough USB outlets in the house. Or, a more common scenario might be traveling with your iPhone, Kindle, and perhaps soon an iPad, and then realizing that you brought the cables, but not the mini power brick. These are both scenarios that Fastmac hopes to address with its recently announced U-Socket that it displayed at the 2010 Macworld Expo, which the company hopes will eventually become ubiquitous at hotels, conference centers, and even your own home."