pearl/ diamond details from wikipedia

• The Legendary Pokémon gracing the covers of Pokémon Diamond and Pearl have been officially identified.
  • The Pokémon depicted in Pokémon Diamond's box-art is called Diaruga, the Time-Ruling Pokémon.
  • The Pokémon depicted in Pokémon Pearl's box-art is called Parukia, the Space-Ruling Pokémon.
• Other recently revealed Fourth-Generation Pokémon include:
  • Cherimu, a Grass-type Pokémon
  • Pachirisu, an Electric-type Pokémon
  • Dorapion, a dual Poison/Dark-type Pokémon.
• Perappu, which had previously been announced to be the first ever pure Flying-type Pokémon, has now been remodelled into a Normal/Flying-type Pokémon.