A Mega Stone and Mega Evolution guide created for Pokemon X and Y was recently updated by its creator.
IGN.com posted this guide last year that helps players navigate through using these special discoveries to power up their Pocket Monsters throughout each game. It was recently updated to include the latest information on Mega Stones and Mega Evolutions. See it here.
Mega Stones can be found at certain locations during specific times. The guide basically assists the player in finding the right places and tells them when to look there. The stones are required in order to make a Pokemon go through a Mega Evolution.
Pokemon X was recently revealed by Nintendo to be the more popular out of the two versions.
Nintendo originally declined to comment one which of the two is the more popular, but video game site Kotaku recently took a closer look at different evidence and discovered that the X version might take it.
By looking at the UKIE/GfK Chart-Track which keeps track of gaming sales in the U.K. Kotaku was able to discover which version of Pokemon is more popular. It released the list for the top 100 games in the U.K. where Pokemon Y ended up at number 29 while Pokemon X ranked a bit higher at number 27. This point could also be proven in the Nintendo eShop where X was downloaded 24116 times and Y was downloaded 23549 times.
Nintendo eventually caved shortly after this report was posted and confirmed that these lists were correct in stating that Pokemon X is more popular than Y. However, the company only revealed the data for the U.S. which has total sales for X at 1.63 million in Dec. and Y at 1.54 million for the same month.