The AppStore search function only finds third party apps and the AppStore link from the blog post opens the AppStore and shows the unhelpful error message "Your request could not be completed".
I hope the reason for this is that the german store just hasn't been updated yet.
If they on the other hand can't release it here because of the name GMail, which Google had some legal trouble with here in Germany, it would be a big letdown and a kind of poor decision by Google.
The AppStore search function only finds third party apps and the AppStore link from the blog post opens the AppStore and shows the unhelpful error message "Your request could not be completed".