We've been speculating about it since the experience potion was datamined, and now we have an announcement. Yes, Virginia, there will be an in-game store. Bashiok gives us the details on what the current plan for the feature is, including a way to get lesser charms of good fortune, and the big news is that the feature will be rolled out first on Asian realms.
So as we speculated before, the experience buff is going to be region specific, rolling out in Asian realms first. No word on when/if these features will make their way to Europe or North America. It's a move that I have to admit makes sense considering that most of the recent subscriber drop was reported to be in Asia. Asian realms use a different business model where you pay by the hour, and new players are not willing to play hourly in order to catch up with existing players. Whether or not a version of the store with the various mounts and pets available on the website will debut at the same time as the convenience items like lesser charms and the new XP buff is yet to be determined.