Of course having hundreds of thousands of hotspots operating at once and being shared by many users and/or devices could potentially cause a problem for carriers and any organization looking to utilize WiFi over relatively free and clear radio waves. The solution if you are the London Olympics however is straightforward.
First, ban the use of “shared” hotspots by adding them to a list which also includes pepper sprays, fireworks, knives, laser pointers, drugs, firearms and radio scanners.
Next, confiscate offending devices.
Here is the specific wording… Be sure to read it and comply before it’s too late:
Personal/private wireless access points and 3G hubs (smart devices such as Android phones, iPhone and tablets are permitted inside venues, but must not be used as wireless access points to connect multiple devices)