Assisted GPS refers solely to receiving the info the device needs to locate the satellites (i.e. the almanac) via another source, rather than directly from the

Assisted GPS refers solely to receiving the info the device needs to locate the satellites (i.e. the almanac) via another source, rather than directly from the satellites. Receiving it from the satellites directly takes ages because the bandwidth of the communication channel is very low. It has nothing to do with WiFi - the transport of the data can be anything (e.g. mobile network). You are right that devices also use available wifi signals for location, but it's not AGPS. What seems novel about this is the ability to learn more precise room-level locations.