I must say, though I've only glanced through it so far, it seems in depth and of the highest quality (I was especially pleased when it showed the background for mail).
I have a suggestion though. Though it serves no real purpose I can figure, except maybe aesthetic value, I wonder if you could maybe mention in the G/S/C Berry sections what the berry syncs up to in later games. I.e., Berry is presumable an Oran Berry, Gold Berry is Sitrus, etc. I'm not suggesting fusing the two, just mentioning, for example, in both the "Oran Berry" and "Berry" pages that it may also go by the other name as well
And thanks so much for this, it will be of so much use in the future!
EDIT - As I was looking over the Gold Berry page...it offers a few locations where it can be received or won...but no place where it can be picked...that seems like a useful tool as well...perhaps adding that would be beneficial?