Yesterday i bought my HTC Trophy, and guess what.
I couldn't even download free application, cause it was not supported in my country.
Here is a little solution
Reboot your phone(entirely, to start again - press Shutdown, and then start with scroll up/down among with shutdown button)
Then, go at hotmail.com and create a new e-mail
This e-mail should have regions where you can use marketplace
I chose London , and put Postal code M1 1AA
I saw it works fine then! You can switch back to your country, when it's available, as well
With this , we solve 2 things:
1st: The thing above
2nd: We use a clean e-mail as windows live, so if there will be no reason to delete it. Cause if we use a normal acc and we want to delete it afterwards, we can do it ONLY by resseting the mobile entirely
Anyway, hope it helps someone ><