Ian's stuff isn't showing up in the store for me. If I do a search for a blank space it only returns 251 apps. Wordfeud and Cocktail Flow, which were available to me in the RP, are no longer there either. (I'm using the RTM.)
This brings up uncomfortable reminders of Xbox Live, which has been devoid of meaningful content over here for years compared to the UK and US. I have no idea whether or not they're planning to repeat that fiasco with the Windows Store, but the first signs aren't good.