The innovative Rolly robotic speaker system, which is not yet available, is emblematic of the company’s improved fortunes. Image: Sony

LAS VEGAS - After a rough couple of years, Sony is beginning to look like its old self.

It might be too soon to declare a total comeback, but the electronics giant finally seems to have momentum. Those quarterly losses that at times topped $500 million as Sony (SNE) struggled to turn around its core electronics business? They’re not quite a distant memory. But here at the Consumer Electronics Show, Sony does exude a confidence it hasn’t shown in a while.

At a dinner with journalists Monday night, Sony Electronics President Stan Glasgow was upbeat. Despite the slowing economy, consumers responded to Sony’s risky $100 million marketing campaign, and turned out in force to buy high-definition TVs, camcorders and other gear in November and December. The industry support for Sony’s Blu-ray format for high-definition video is also encouraging. “I think across the board we demonstrated we had a good holiday season,” Glasgow said.

Bill Gates is offering his view on the tech landscape he shaped. Last year, the Microsoft chairman used his CES keynote to tout ideas including an in-car technology partnership with Ford. Image: Consumer Electronics Association

LAS VEGAS - Microsoft Chairman Bill Gates used his last speech opening the technology industry’s biggest trade show Sunday night to announce that the software giant will challenge rivals such as Apple (AAPL), Sony (SNE) and Adobe Systems (ADBE) with new initiatives in phones, online video and the Xbox 360 gaming console.

Trying to pick the winners in ‘08? Watch these three conferences.

In January, politics has Iowa, New Hampshire and South Carolina. Tech has DEMO, Macworld and the Consumer Electronics Show.

Just as primaries and caucuses define the year’s political landscape, these three big technology trade shows compete to introduce trends that will shape 2008. Each show has its own personality and its own surprises – and its own part in influencing whether a few months from now we’re all clamoring for new iPhones, wireless HD home theaters, or the next challenger to Facebook.

Shoppers headed online in droves on Cyber Monday, according to the latest stats: 32.5 million visitors entered virtual stores, up 10 percent from a year ago.

Intel’s new Penryn chip. Image: Intel

Intel has launched a new generation of chips that it hopes will boost its lead over rival Advanced Micro Devices heading into 2008.

The line of chips, code-named Penryn, uses a new manufacturing method that allows Intel (INTC) to make the chips both smaller and more efficient. Penryn chips should help companies like Hewlett-Packard (HPQ), Dell (DELL) and Apple (AAPL) to design more energy-efficient servers, more powerful of desktops and more portable laptops.

In the near term, Penryn’s value to Intel could be more about reputation than the bottom line. Earlier in the decade, competitor AMD (AMD) took advantage of the chip giant’s missteps and offered products that many in the industry judged to be technologically superior to Intel’s. But now Intel is back with a vengeance, and has AMD on the ropes. And because the Penryn chips are based on an advanced 45-nanometer manufacturing process, they give the company valuable bragging rights.

Samsung P-1400 Blu-ray player. Image: Samsung

It’s been quite a busy few days for the high-definition format war between Blu-ray and HD DVD. First, Wal-Mart (WMT) confirmed that it has begun selling the Toshiba HD-A2 HD DVD player in stores for less than $200. The next day Amazon (AMZN) and Circuit City (CC) began offering the player online for a penny less.

Now there are reports that Wal-Mart today will sell the Toshiba player for less than $100 for a limited time; Best Buy (BBY) might follow suit.

So what’s the Blu-ray camp thinking about all this?

Advanced Micro Devices (AMD) is having a tough time battling Intel (INTC) for market share and profits in the PC business. While chipmaker AMD has forged relationships with market leaders like Hewlett-Packard (HPQ) and Dell (DELL), there are plenty of customers who haven’t embraced the microchip upstart – most obviously, Apple (AAPL).

Toshiba HD-A2. Image: Toshiba

A pre-holiday retail skirmish in high-definition DVD players has begun. Just days after Wal-Mart (WMT) slashed its in-store price on the Toshiba HD-A2 to $198, Circuit City (CC) and Amazon (AMZN) followed suit by offering the player online for $197.99.

Consumers seem eager to buy the HD-A2, which had been selling on Amazon for $230 and as much as $280 elsewhere. The Toshiba player, which had been one of several top-selling DVD players on Amazon before the price cut, has quickly become the favorite: On Monday morning it was the 24th most-purchased electronics item on Amazon’s site. The next closest DVD player ranked 46.

Toshiba HD-A2. Image: Toshiba

The battle for the future of the high-definition DVD has taken an intriguing turn: For the first time, mega-retailer Wal-Mart (WMT) has begun selling a player for less than $200.

In various online forums, enthusiasts have reported seeing the Toshiba HD-A2 HD DVD player available in stores for $198, significantly less than its common price of $230-$280.

Microsoft (MSFT) mostly saw modest increases in traffic to its online properties in the third quarter, with gaming, technology, real estate and search leading the company’s growth.