From Bulbapedia, the community-driven Pokémon encyclopedia.

• May 16: The Pokémon Company locks out security threats and foreign visitors
• May 16: NPD Group releases April gaming sales stats
• May 15: Pokémon Video Game Showdown to pit U.S. vs. Japan
• May 15: The Pokémon Company officially announces Pokémon Platinum
• May 14: DP083 title revealed
• May 11: Pokémon Platinum announcement leaked?
• May 9: DP082 title revealed
• May 7: 'Together2008' to debut May 15
• May 6: Pokémon.com releasing MD2 Wonder Mail passwords
• May 5: Pokémon Puzzle League coming to VC Monday