Dumb mistranslation on my part, actually - it says it'll have "roughly" 300 Pokemon, not "exactly 300".

dawnlovesham: No, this is far superior to the work done to Dragonball Kai, which suffered tremendously from completely reanimated scenes, which not only looked horribly out of place, but were often downright ugly.

(also, Dragonball Kai was recut and given an all new voice track and score, neither of which lived up to the original. This Pokemon episode is purely edited on a visual level, the good old music and acting performance we all know and love is still present)

A summary of the special itself has been added. This episode was largely just a bunch of clips and listing of facts, so while it's an enjoyable watch, it's not something that easy to summarize.

Never trust things that seem too good to be true on April 1st, kids :)

Really impressive that the youngest kid present was the one to perform the best in the knowledge test.

I looked up Shigeru Kanda, it appears he made it all the way to the world championships in at least both 2004, 2005 and 2006. Working at Creatures must be a dream job for him. Wonder if they'll bring him back for further coaching of the card game team, the things he said in this episode was mostly just stuff straight from the beginners' guide manual.

How come michan forgot that Satoshi doesn't have a Thunderstone, since the Rocket Gang stole it from him in that very episode he's trying to use as evidence of the opposite? :P

Distribution of the pencilboard starts Saturday the 24th, so I'll guess they're at least going to bring it up on this Sunday's episode.
Given that the entire episode is based around the game, showing them creating the imagery on it shouldn't be too out of place, either.

Episode notes and dub edits have been added to the edits section:
http://www.pocketmonsters.net/episodes/166#Edits

This entire episode was essentially a huge love letter to actor Ken Takakura, though the references got mostly lost in the dubbing process (not that the average non-Japanese viewer would've picked them up anyway). Theres a lot of lines that are just outright changed for seemingly no reason, though the dub generally did a good job replacing the various puns on smoke and clouds with ones that work in English.

Added details about an untranslatable pun the dub had to write around to the edits page.

It's not "just a week", it's "one whole uninterrupted week", ie 168 hours devoted completely to the sole purpose of filling that Pokedex. That's absolutely doable - and they've done similar marathons before, so it's not like we're dealing with people who barely know how these games work here. I wish them all luck.