*ware - Virtual WIFI

Connecting to multiple IEEE 802.11 networks with one WiFi card

# With VirtualWiFi, you can connect to a guest's machine or play games over an ad hoc network, while surfing the web via an infrastructure network.
# You can use VirtualWiFi to connect your ad hoc network, which may contain many nodes, to the Internet using only one node.
# VirtualWiFi can help make your home infrastructure network elastic by extending its access to nodes that are out of range of your home WiFi Access Point.

http://research.microsoft.com/netres/projects/virtualwifi/