As susspected, today the official European site for Pokémon Platinum toady revealed that the Oak’s letter is available to download from today. We’ve also had information that its also avaialble in Austraila/New Zeland region as well. Between today (28th September) and 8th November, anybody with a version of Pokémon Platinum can use the Wi-Fi option to download the Oak’s letter, thus allowing you to catch a Shyamin. For more details, see the previous post.
We’ll bring you more when we learn it.