How many radios should a mobile user have?

What is the right number of receivers that a typical wearable user would want to have?

Alternative is many of the streams should be delivered over a single wireless LAN

• Clearly is better from a volume of devices and spectrum efficiency point of view)
• Thus, soft radios used simply as an interim solution to be signal suckers to convert everything to packets and the remaining delivery is via wireless LANs

What is the relationship between the number of radios and:

• the data rates that a user can source and sink?
• a user's context switching time?

As a starting point: I'll offer the hypothesis that we need two radios.

• look for other access points,
• acquire information which is used to determine your location and heading,
• as a secondary channel to listen to (and perhaps transmit) contents which is not available via the main communication channel,
• listen to non-traditional communication emissions in your environment, and
• ... What else???