Periodik Labs

Microsoft has created a new piece of software called VirtualWiFi that allows a single Wi-Fi card to be connected to multiple networks simultaneously. I haven't downloaded the source, but reading the site suggests that it is implemented something like preemptive multitasking. That is, connections are made to multiple access points and the software rotates through them, sending and receiving data as necessary. The software deals with each acsess point individually, but by rotating through all access points quickly, it gives the appearance of simultaneity.