Soul Dew isn't even an event item. You can buy it in PBR
According to what the last poster said, that's the point. If you think about it, every pokemon species can be obtained between R/S/FR/LG/E/D/P/Pt/HG/SS except for the following: 151 Mew (MPR), 251 Celebi (Japanese Colosseum bonus disk*), 385 Jirachi (Colosseum bonus disk*), 386 Deoxys (Event-only), 489 Phione (MPR), 490 Manaphy (Ranger), 491 Darkrai, 492 Shaymin, and 493 Arceus (all event-only).
*Since the bonus disks were only given out on one specific day (day of Colosseum's release) and they aren't readily available on the
mainstream market, they count as events
Soul Dew may only be obtained in Southern Island (event-only), or purchased from PBR (a side game).
EDIT: If you think about it, however, the "pinch" berries (Liechi, Ganlon, Petaya, the Sp Def one, and Salac) can only be obtained through Colosseum, XD, and PBR. Maybe XD and Colosseum count as main games?
Technically the Colosseum/XD purified pokemon (and XD move tutors) are not readily obtainable from any of the main stream games, but last year's and 2008's rules stated that moves may come only from:
-Level up
-Egg move by breeding
-TM or HM (from Pokemon [insert lastest game] and earlier)
-Move Tutor (from Pokemon [insert lastest game]
and earlier)
-
From another game [besides main stream], already knowing the move (ex. PBR Pikachu)
-
From a Nintendo event, already knowing the move
-Through Smeargle's Sketch move
So TPCi just contradicts themselves by not allowing event/non-main-stream pokemon species, but allowing event/non-main-stream pokemon themselves. That just promotes unfairness...
In my opinion, the ban lists for both moves and species should be based on the same factors (both species and moves should be banned for the same reasons). Basically, they can one of the following with these rules:
-Ban all non-main-stream & event-exclusive Pokemon and items (Current ban list, along with XD-exclusive moves)
-Allow all non-main-stream Pokemon and items (Ban list: Celebi, Jirachi, Deoxys, Darkrai, Shaymin, and Arceus)
-Allow all non-main-stream & event-exclusive Pokemon and items (No bans at all)
tl;dr TPCi should be consistant on their bans. If they ban event-only species, also ban event-only items and moves. Similarly, if they allow event-only moves and items, allow event-only species