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The reason the Spectre isn't even thinner is the ports on the left side. HP has built in a gigabit Ethernet port, as well as 2 USB 3.0 ports, one HDMI, one Mini DisplayPort, and a combined headset jack. There's also dual 802.11a/g/n WiFI, Intel WiDi wireless display support, and Bluetooth. And HP says there's built-in near-field communications support, so the Spectre will be able to sync with NFC-equipped phones. I didn't get a chance to try that out, obviously.
Another part of the consumer branding of the Spectre is its audio. As was prominently noted on the display of the Spectre I laid hands on, the Ultrabook is equipped with Dr. Dre's Beats Audio Manager software, which is tied into an analog volume with battery like Sony PCG-591L Ac Adapter , Sony PCG-661L Ac Adapter , Sony PCG-691L Ac Adapter , Sony PCG-705 Ac Adapter , Sony PCG-C1F Ac Adapter , Sony PCG-C1MW Ac Adapter , Sony PCG-FR55E Ac Adapter , Sony PCG-FX Ac Adapter , Sony PCG-FX55 Ac Adapter , Sony PCG-GR150 Ac Adapter , Sony PCG-GR250 Ac Adapter , Sony PCG-GR290 Ac Adapter control on the right side of the base. There's also support for wireless audio, so you won't have sully the desktop you set up as an altar to your shiny Spectre with unsightly speaker wires.
HP has set the price on the Spectre in the configuration I saw at $1,399—about a hundred dollars more than a comparable 13" MacBook Air. That's the "premium" in the Spectre's branding; the machine is clearly designed to be an object of techno-lust like the MBA, and shows that HP might actually have it in them to design something that inspires. I wouldn't mind giving the Spectre a longer look when I get the chance—if Peter Bright doesn't snatch it out of my hands the second he sees it. The Spectre starts shipping February 8.
Kanaex has also recently announced a new version of its mini-DP to HDMI adapter that includes a USB port to transmit audio through the HDMI port. While the mini-DP to HDMI adapters on the market will transmit audio directly from a mini-DP connection—the DisplayPort spec supports audio channels in addition to video—Apple's current crop of hardware uses USB instead. Kanex's newest adapter would eliminate an extra cable for audio, especially handy in A/V setups. Kanex expects to be shipping the new adapter this summer.
Apple is including graphics cards with mini-DP ports on its Mac Pros, but the cable on the 24" Cinema Display is essentially designed for use with a MacBook Pro or iMac that is located right nearby. Towers like the Mac Pro tend to be placed under desks or otherwise much farther away, so the only way to use one with Apple's display is a mini-DP extension cable. Luckily, both Monoprice.com and Circuit Assembly have you covered in this situation as well, with several lengths of extenders to suit most needs.
VGA and DVI will continue to be common ports on displays, while HDMI essentially rules the roost when it comes to flat panel HDTVs. Apple's reportedly buggy mini-DP to dual-link DVI adapter is your only option for connecting very large monitors, such as Apple's 30" Cinema Display, but there's a good variety of options available for connecting your mini-DP equipped Mac and most displays. While DisplayPort—and Apple's mini version, which is being added to a future version of the DisplayPort spec—is the future of display connections, in the meantime these adapters will keep you humming along.