I switched from Android to WP7 about 2 years ago. I was able to hack/root/unlock my first Windows Phone so that I could enable tethering. Since then I have moved on from the Samsung to Nokias and have never looked back. 900 => 920 => 1520. I do miss tethering, but outside of that I have not really seen any reason to mess with the phone.
Am I missing something? Is there some great app/feature that I could obtain by rooting the phone? Is the OS even "hackable"?
On a side note, Ive heard games like Angry Birds Go can be hacked on other OS's so that you have a ton of "coins". Is there anything like that for WP8 games?