A cell or A Wireless LAN gear ?

A forbes.com report spotted on Slashdot.

Avaya, Motorola and Proxim this week are expected to announce a co-developed handset and enterprise network gear that let mobile phone users roam between cellular networks and wireless LANs.

The combination holds the promise of cutting phone costs for business customers and making mobile workers more productive. It is based on a new Session Initiation Protocol (SIP)-based Wi-Fi/cellular handset from Avaya and Motorola, IP-based or IP-enabled PBXs from Avaya, plus new WLAN switch and thin access points developed by Avaya and Proxim.