It sounds like a lot of people are running into the same problem recently.  As of the day I finished writing these instructions, things were good. I am going to do this project from scratch on a Pi 2 and see if something has changed.  I will update anything necessary at that point.  Gimme a few days and hopefully we will have answers!

My wlan adapter is off after booting, no access point is available. Do you have any idea?

What brand is your wlan adapter? Without knowing this, I would guess it is a driver issue, or possibly a power issue.  If it isnt getting enough power to cut the device on, you can add 'max_usb_current=1' in /boot/config.txt and reboot your pi.  Make sure your power supply can handle the extra power increase though

Got the same driver problem I guess. in the hostapd file I've tried all the drivers I could think off and it doesn't recognize crap. Also it's not power as my Wifi dongle turns on. Which dongle did you use? Was it the one from Adafruit? Because the script works fine (and I'm using the Pi 2) it's just some driver crap. I'm using a TL-WN722N. Also, I've done the max_usb_current=1 thing.

It sounds good but I don't think he have ever created anything like that.

What do you mean?

Any updates to this project?

I am in the final stages of a book I was contracted to write.  It unfortunately has hard set deadlines that I have to meet and it leaves little time for what I had previously started on Hackaday.  My goal is to get ahead of schedule for the book and have most of it finished before the new year.  Finishing THIS tutorial will then become my next goal, especially with the attention it has recently received. Thanks for the patience!

if this project comes to life, isn't going to be extremely slow?

I have already completed this project, and it actually works really well. It is just as fast as using the Tor bundle that keeps your browser traffic anonymous, but it does it for ALL your traffic.  You connect to it like any other wifi source, so those people who are less technically savvy (our parents, for example) can easily use it too.

It was a fun project and I will post the tutorial as soon as I can catch up on all my projects.  Some have hard deadlines so it takes away from the more fun stuff on here :(

really nice dude! but take your time XD i was thinking it would be slow for two reasons: tor connections are already slow, and raspberry doesn't have a lot of processing power. i'll keep an eye on this project. GJ!

is this happening?  

also, other related projects should be:

- raspberry pi firewall that can block all direct traffic to a list of domains and ports (e.g. google, google analytics, akamai, amazon, facebook, etc...)

- router that monitors your coms in real time and tells you if your private data is being stolen, where it's being sent, and how.  this would be done by cross-checking for overlap between your standard coms that go through the router and a local stream of private data going just from the computer to the router.  that could be achieved by either running only unencrypted coms or running simulated encrypted coms in which you retain a separate, accessible set of the keys necessary for the router to decrypt a copy of your outgoing coms to run the overlap checker comparison against your local private data stream.

Sorry, I started a new job right when I was posting these projects. Training is wrapping up and I should be able to finish the write ups.  I know you can set the router to filter ads, but I may check on the rest. It sounds interesting!