alphadogg writes "Windows 7 contains a 'SoftAP' feature, also called 'virtual Wi-Fi,' that allows a PC to function simultaneously as a Wi-Fi client and as an access point to which other Wi-Fi-capable devices can connect. The capability is handy when users want to share music and play interactive games. But it also can allow on-site visitors and parking-lot hackers to piggyback onto the user's laptop and 'ghost ride' into a corporate network unnoticed."
While this means a bit more policing for networks meant to be locked down, it sounds like a good thing overall. Linux users, meanwhile, have had kernel support (since 2.6.26)
for 802.11s mesh networking
, as well as Host AP support for certain chipsets