The main goal of Chevron team is to make Windows Phone development more accessible. There is no (simple) way to unlock your WP7 device, or publish your application from some countries. If your country is not on the list of Microsoft you have to find other ways than by using App Hub. Microsoft’s lawyers should do a lot of efforts to get a new country on their list, so that is the reason why they don’t allow to upload applications from any country.
Chevron team became famous when they published an unofficial tool to jailbreak WP7 devices. Then they had to discontinue their unlocker as soon as MS noticed it.
But they team will soon be launching an approved Windows Phone unlocking service as part of ChevronWP7 Labs. This will be available to developers across all skill levels and all regions.
The service will require a small fee (via PayPal) to offset costs but it will be more affordable than the App Hub.