the item you've requested is not currently available in the us store

according with a post that I read earlier today it may be exactly the message that you are getting, that the app or whatever item you are trying to purchase has a restriction and can only be sold in Canada, EU , or whatever country they made it available for..

Maybe the item you are trying to purchase isn't available in the US iTunes store.

You are ahead of the game, then. I don't even see a "new & noteworthy" section.
Apple just started an App Store for Macs. Maybe that's why the itunes store is wonky.
I kept seeing that "not available in US" message for free songs of the week a few months ago, then it mysteriously went away.
Definitely something on their end!

I've had the same problem for quite some time now... and it persists across iTunes software updates. I suspect (tho' am not 100% sure) I've even done a complete purge and re-install and still have the same problem.

This occurs every time I access "iTunes Store" within a given iTunes application initiation. I suspect that for some reason, instead of using the default Home page load, it's defaulting to searching for some invalid string.

I also suspect that no answer from Apple or forum members will be forthcoming. I'm going to try to just live with a keyboard sequence to get past the glitch:
______
(Tab) » (Enter) » {(Alt)+(S)} » (H)
¯¯¯¯¯¯¯¯
Hope this is of some use. —Thri

This happened to me after upgrading iTunes. Go under Edit > Preferences > Parental Controls. UN-check anything that is checked under the "Disable" section. The Save/OK.