My favorite are:
Amazon Mobile
Google Books
Google Music
Google TV Remote
Netflix
Not sure if Books are now open to everyone, they just added Google Videos to Canada.
Personally, I live 45min from the US border and I have an US address/credit card. We have Netflix in Canada but the selection really sucks, compared to US.
I use a E4200 DD-WRT router as PPTP server with US IP's to all my devices (Google TV, mobile, tablet, etc.) when I'm at home. For example, you need an US IP to upload your music to Google Music site but you can use any IP to download/broadcast Music/Video's to any of your mobile devices. I know is not easy, but is worth the trouble. It really sucks that we have all those restrictions.
At least I can get all my music anywhere, without taking any space on my mobile.
From what I understood, you did not create this, (correct me if I'm wrong
) therefore it doesnt belong in the development section
Credit is clearly given into OP, I certainly hope is not going to ruin your day.
I saw many mods posted here (if you can call my change a mod... took me 2min to modify the APK), so I think is the best place for it, since is not related to Original Android development.
MOD = modification of an existing application created by someone else
There are tons of MOD threads listed in this forum, from what I saw.
Still, if I'm wrong, please let me know what would the the appropriate forum so I post there next time.
Cheers