We complained a few days ago about not being able to install the new Halo game just released on Windows Phone.
At the time Joe Belfiore tweeted that they were working on the issue, and it should be resolved in a day or two.
It seems that day has arrived, as the app now installs smoothly on my phone, where before it would not.
The game is $6.99, for a bizarre reason without a free trial, and can be found in the Windows Phone Store here.
Thanks Rasool for the tip.