Microsoft seems to be constantly tweaking and fine tuning the Windows Phone Store experience. The latest upgrades will be seen with Windows Phone 8 store and covers a few design changes, a little under the hood tweaks and a hand full of new features. All designed to help consumers with app and game selection and to help developers get thier works seen.
If you are curious if an app or game has Live Tile support, the Details Page of the application will make note if the app has a Live Tile. This may not be a major improvement but how many out there have been curious is an app or game they are shopping for has Live Tile support and it's not noted in the description?