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Its price is $249.99 at amazon, here is some advantages and technical details :

-Call anyone else on Skype, anywhere in the world for free, no PC required
-Make and receive Skype phone calls where you have access to a wireless Internet signal
-Connect to any landline or mobile phone outside of the Skype network for pennies per minute
-Manage your contact list and display who is available to talk
-All calls are secure and encrypted with WEP Wi-Fi security

-Model number: SPH101
-Security: Hardware-based Wired Equivalent Privacy (WEP) 40/64-bit and 128-bit, and WPA-PSK
-Standard capability: 802.11g standard compliant
-Network connection: Wireless 11g
-Network speed: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbps
-Power supply: Battery pack (included)
-Battery life: Talk time: up to 3 hours; standby time: up to 50 hours
-Input: USB client only for charging
-Output: USB client only for power
-Dimensions: 46 x 110 x 21 millimeters / 1.81 x 4.33 x 0.83 inches (WxHxD)
-Weight: 0.11 kilograms / 0.25 pounds with battery
-Warranty: 1 year
-In the Box: SPH101 Skype WiFi phone, battery pack, power charger, resource CD-ROM, setup guide, warranty/support information card

Netgear's Skype Wi-Fi Phone is the world's first wireless Internet phone that can make free calls to other Skype users anywhere in the world, anytime you have Wi-Fi access, without a PC. It's the first phone to combine the power of VoIP calling, wireless technology, and Skype's easy software. The result is a phone that you can use anywhere in the world there's a Wi-Fi signal available to call other Skype users for free. No monthly fees and no contracts required.
Unlike other devices that must connect with a PC, the Skype Wi-Fi phone works wherever you're connected to a wireless Internet access point--whether it's in a home, office, cafe, open public hotspot, or any open municipal wireless access point. The Skype experience remains the same, in that you can make free domestic and international calls, as well as host conference calls and chat, with other Skype users anywhere in the world, and to non-Skype users for a small fee. With this device, headphones or USB phones plugged into a laptop or PC are not required.
It's pre-loaded with Skype's software and ready to use out of the box with your wireless network. Just turn on the phone and enter your Skype username and password. The Skype software pulls up your full contact list, displays the connection status on the phone screen, and allows you to connect to any other Skype user for free. If you want to call non-Skype users, it costs just pennies per minute with the optional SkypeOut option.

This item will be released on June 30, 2006. You may order it now and we will ship it to you when it arrives. Ships from and sold by Amazon.com.

For more : Netgear SPH101 Skype Wi-Fi Phone [amazon.com]