'Virtual Wifi', and 'Traceless'

Virtual Wifi

VirtualWiFi is a virtualization architecture for wireless LAN (WLAN) cards. It abstracts a single WLAN card to appear as multiple virtual WLAN cards to the user. The user can then configure each virtual card to connect to a different wireless network. Therefore, VirtualWiFi allows a user to simultaneously connect his machine to multiple wireless networks using just one WLAN card.

http://research.microsoft.com

Traceless

Protect your privacy with Traceless. It does the following: Clear History, Clear Temporary Internet Files, Clear Cookies, Clear Recent Documents List, Password protected, Run at Startup, Keep your homepage, Schedule to run when you want, Run quickly from Taskbar, Easy to install and uninstall, Comprehensive help file.

http://users.bigpond.com/pvantarakis/