Ok hacking wifi is as simple as compiling a linux application or simple ./exploit, if you intend to hack your neighbors wifi it is good to get to know who they are, where they are, what they do and know just how smart they are. There is a ton of things you can do with ettercap, the plugins are great.
I have been traveling the last two weeks, and I have found how useful is wifi-radar on my Linux powered laptop. I have an IBM Thinkpad T30 with an Aironet Wifi internal card (for the records).
WiFi Radar is a Python/PyGTK2 utility for managing WiFi profiles.It enables you to scan for available networks and create profiles for your preferred networks. At boot time, running WiFi Radar will automatically scan for an available preferred network and connect to it. You can drag and drop your preferred networks to arrange the profile priority.
Could this be the badly needed 'fix' that we need in the wireless world with regard to Linux? While it does present a new world of simplicity with getting innovation underway, I do not think this alone is going to help get more wireless vendors on board with the Linux movement anytime soon.
WiFi Radar is a sweet Ubuntu Application to set up and configure your wireless connections through an easy, intuitive inferface.