Over on XDA, Jaxbot has just detailed a project that he has been working on.
Basically he has managed to unlock his out-the-box Focus with nothing more than a pair of pliers (yes, I'm paraphrasing).
Now, let's take a step back. What I did was interop unlock my Samsung Focus, without using Chevron Labs, AppHub, etc. Not that I'm cheap, but it's the principle here that counts. Unfortunately, there's a catch: the exploit, while working for every device, requires further provisioning. Samsung devices can do this using the diagnostics application. Other devices have some opposition to that.
Hit the break to see how this all works.
So how does it work?
First, on your Samsung device you navigate to this website where you will be greeted with this:
Once there it downloads a ZIP archive to your phone, and you "install" the hack from that:
To do this - entirely through the browser - he actually found a pretty nifty way to make the OS change some registry entries, and hence, enabling the unlock. He also notes that although this is only for Samsung devices at the moment, he is working on getting it working across the board. Remember as with any measure that modifies your Windows Phone, you do so at your own risk.
Checkout the XDA link below to find out more about the nitty-gritty details.