Your Windows Phone is made in a factory (mostly somewhere in Asia).
The manufacturer of the product is called the “Original Equipment Manufacturer”
In the case of Windows Phone, this could be “Samsung”, “Nokia”, “HTC”, …
These manufacturer all play a different part in the Windows Phone Ecosystem.
And each are given a separate section in the Marketplace as well.
If you buy a Samsung Phone you can access the “Samsung Zone”, if you buy a Nokia you can access the “Nokia collection”.
And, of course, if you jailbreak your phone, you can access everything 🙂
The configuration is stored somewhere inside the Registry. (yes, WP has a register…)
If you install a random regeditor like WP Root Tools, you can browse into it!
The key we’re interested in, is the following:
Which can, for example, be modified into “NOKIA” and “Lumia 800” 😀
Apps to automate the market selection are available from XDA and bazaar 🙂