ComputedBy - The idea to share a WiFi access point is far to be a new one (it is obviously as old as the technology of the WiFi access point itself), but previous solutions were not addressing many issues (including the legal ones) that this proposal seems finally to consider seriously. This may really succeed in transforming a ridiculously endless utopia in something tangible!
Now, Internet providers (including mobile networks) may have a word to say about that. Just by changing their terms of service they can just make this practice illegal... as business does not rhyme with effectiveness (yes, I know, that is strange!!...) neither with objectivity. It took some time but geographical boundaries were raised up over the Internet (which is somehow a as impressive as ridiculous achievement when you think about it), so I'm pretty sure 'they' can find a work around to make this idea not possible or put their hands over it.
 
Via ars technica
 
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We’ve often heard security folks explain their belief that one of the
 best ways to protect Web privacy and security on one's home turf is to 
lock down one's private Wi-Fi network with a strong password. But a 
coalition of advocacy organizations is calling such conventional wisdom 
into question.
 
Members of the “Open Wireless Movement,” including the Electronic 
Frontier Foundation (EFF), Free Press, Mozilla, and Fight for the Future
 are advocating that we open up our Wi-Fi private networks (or at least a
 small slice of our available bandwidth) to strangers. They claim that 
such a random act of kindness can actually make us safer online while 
simultaneously facilitating a better allocation of finite broadband 
resources.
 
The OpenWireless.org website 
explains the group’s initiative. “We are aiming to build technologies 
that would make it easy for Internet subscribers to portion off their 
wireless networks for guests and the public while maintaining security, 
protecting privacy, and preserving quality of access," its mission 
statement reads. "And we are working to debunk myths (and confront 
truths) about open wireless while creating technologies and legal 
precedent to ensure it is safe, private, and legal to open your 
network.”
 
One such technology, which EFF plans to unveil at the Hackers on Planet Earth (HOPE X) conference
 next month, is open-sourced router firmware called Open Wireless 
Router. This firmware would enable individuals to share a portion of 
their Wi-Fi networks with anyone nearby, password-free, as Adi Kamdar, an EFF activist, told Ars on Friday.
 
Home network sharing tools are not new,
 and the EFF has been touting the benefits of open-sourcing Web 
connections for years, but Kamdar believes this new tool marks the 
second phase in the open wireless initiative. Unlike previous tools, he 
claims, EFF’s software will be free for all, will not require any sort 
of registration, and will actually make surfing the Web safer and more 
efficient.
 
Open Wi-Fi initiative members have argued that the act of 
providing wireless networks to others is a form of “basic politeness… 
like providing heat and electricity, or a hot cup of tea” to a neighbor,
 as security expert Bruce Schneier described it.
 
Walled off
 
Kamdar said that the new firmware utilizes smart technologies that 
prioritize the network owner's traffic over others', so good samaritans 
won't have to wait for Netflix to load because of strangers using their 
home networks. What's more, he said, "every connection is walled off 
from all other connections," so as to decrease the risk of unwanted 
snooping.
 
Additionally, EFF hopes that opening one’s Wi-Fi network will, in the
 long run, make it more difficult to tie an IP address to an individual.
 
“From a legal perspective, we have been trying to tackle this idea 
that law enforcement and certain bad plaintiffs have been pushing, that 
your IP address is tied to your identity. Your identity is not your IP 
address. You shouldn't be targeted by a copyright troll just because 
they know your IP address," said Kamdar.
 
This isn’t an abstract problem, either. Consider the case
 of the Californian who, after allowing a friend access to his home 
Wi-Fi network, found his home turned inside-out by police officers 
asking tough questions about child pornography. The man later learned 
that his houseguest had downloaded illicit materials, thus subjecting 
the homeowner to police interrogation. Should a critical mass begin to 
open private networks to strangers, the practice of 
correlating individuals with IP addresses would prove increasingly 
difficult and therefore might be reduced.
 
While the EFF firmware will initially be compatible with only one 
specific router, the organization would like to eventually make it 
compatible with other routers and even, perhaps, develop its own router.
 “We noticed that router software, in general, is pretty insecure and 
inefficient," Kamdar said. “There are a few major players in the router 
space. Even though various flaws have been exposed, there have not been 
many fixes.”