Ack - I've probably missed the boat with this one since the deadline for events was yesterday (stupid life gettin' in the way), but I'll put it forwards anyway just in case someone feels like squeezing this is last minute. If not, no worries (I'm already hosting one anyway :P ) and I'll hold it off for future Get-Togethers ^^.
Battle Tower Tag Team Event (Gen IV)
Dust off your Platinum, HeartGold and SoulSilver cartridges, grab a partner and go for the longest winning streak in Pokémon history! The aim is simple - assemble your Pokémon, team up with another user, enter the Battle Tower... and survive. How long can you hold out?
Now, I've never actually used the Battle Frontier option in the Wi-Fi Room before (it's certainly in the list), but according to my research you basically tag up with someone and go for the winning streak (exactly the same as the Tag Battle mode). It's only Gen IV games that can do this unfortunately, since it's none but absent in the Gen V games. But it's only a bit of fun, right? I will probably need to test it out with someone so I can figure out all the nooks and iron out the bumps and stuff, so if any of you are up for it give me a VM or PM (even if this event is too late, I'll still need to know if I want to host it some other time).
Also so far as I know it was Pt, HG and SS that had the BF over Wi-Fi option, however D/P may have just the Battle Tower option (I've never owned a copy of those two so I'd appreciate any help with that). If so, it should be compatible - however I'm just putting Pt and HG/SS for now just to be safe.
In brief, the event will work like this: Peeps will partner up with someone else, and each time they get the 7 wins they'll post it (will probably be a similar system to the one I use for Egg Swap). The pair with the highest streak at the end of the event will win. If they lose a battle and want to try again, they have a choice either to reset their score and start from scratch or keep their score and hope for the best. Also, if one wants to partner up with someone else, they're previous score will be taken off and will have to be agreed between both of the original pair.
So yeah, if it's too late for submitting Events, that's fine. I may just host it next year instead.