The UTStarcom F3000 WiFi Phone doesn't work on Skype, but it does the next best thing, SIP. It supports SDP, RTP/RTCP, RFC2833/inband DTMF, and supports the G.711 and G.729 codecs. Both these codecs are higher quality codecs than standard landline phones, which means there's actually a benefit in using VoIP other than for the cost.
The phone itself has 802.11b/g, supports WEP and WPA, and comes in black and gold. It has a 1.8-inch LCD screen, polyphonic ringtones, text messaging, and a talk time of three hours. Kind of skimpy, but alright if you're just using it around the house or the office. Not a bad phone for Asterisk users.
Press Release [Webitpr]