Got another shiny Pokémon, this time on my Platinum file. A RE Buizel popped up. Docile nature is at least not hindering any of the important stats, so I could eventually make it a decent Pokémon.
As for what I've done. I now have five badges on all three files, and I'm ready to explore the areas that were previously inaccesible due to me not having Surf. In order to get that far I had to find my way to Celestic Town, which wasn't much of a challenge. I then flew back to Hearthome City, and beat the gym there on both my Diamond and Pearl file. Honchkrow and Mismagius both gained quite a few levels in there, so are a bit higher leveled than the other teammembers. Platinum still has the highest level overall.
Seed Bomb, Earthquake, Rock Slide, Leech Seed
Surf, Ice Beam, Psychic, Calm Mind
Thunderbolt, Signal Beam, Grass Knot, Brick Break
Faint Attack, Drill Peck, Heat Wave, Thunder Wave
Fire Punch, Brick Break, Earthquake, Swords Dance
Shadow Ball, Thunderbolt, Energy Ball, Nasty Plot
Surf, Ice Beam, Dragon Pulse, Recover
Return, Aerial Ace, Close Combat, U-Turn
Surf, Flash Cannon, Ice Beam, Grass Knot
Aerial Ace, Earthquake, Rock Slide, Swords Dance
Thunderbolt, Shadow Ball, Signal Beam, Air Slash
Return, Brick Break, Fire Punch, Seed Bomb