Considering that wireless networks are locked down now [well, in theory - many people and companies don't seem to do too good a job of basic wireless security], I don't see that an ad-hoc wireless network will let people connect and pass data through them..
..Especially not just a short time after yet another Matrix crash.
..Especially not just a short time after yet another Matrix crash.
Well, consider why the Matrix crashed this time. The first time was because nothing was secure against the godlike power of a Crash virus, which somehow teleported over sneakernets and destroyed offline backups as well. So, you had the creation of monolithic fortress-esque Hosts, which provided a safe backbone that could fight the new threat of a virus.
That was the 2029 Crash, and it shaped what the matrix of the 2060s looked like, and why it was substantially more mainframe-driven than the Internet is today. The 2064/65 Crash happened because of that vulnerability: the presence of a backbone is what gave Winterknight something to attack with his magical EMP-nukes, or whatever they were. This exposed the fundamental problems of a mainframe-based architecture: a "single" point of failure.
The solution there was to build a worldwide mesh network, with all the redundancies that our current internet is supposed to have (but really no longer does, because ATM switches and fiber optic cable are expensive enough that corps would rather spend their effort bilking their customers than ensuring the future of their companies...) This can be done because 1) wireless technology has suddenly, magically, become able to transmit insane levels of information easily and instantly, so much so that I suspect that they're actually using subspace or some spectrum other than electromagnetic, and 2) computing power is so cheap now that you can carry a Host's worth of processing power in your pocket for less than a thousand dollars.
That's why people have open wireless networks, and why you can retransmit through your toaster, the street lights, your neighbor's cat's RFID collar, Joe Wageslave's RFID-laden "vitamin supplement", etc. Everyone has a vested interest in not seeing a Crash 3.0, so everyone goes out of their way to retransmit, to keep the data flowing.
Except for those selfish clods working in Hidden Mode, who are terrorists and must be arrested before they set off the magical EMP-nuke under their clothing.