Looks like someone's putting together an English wiki for the game: 
http://decaf.kouhi.me/lovelive/index.php?title=Main Page

I'm one perfect Normal away from getting to 8000. Just in time, AX will start soon.
Just need to wait a few min to get my LP back up (in a slightly odd position, enough
points where I'd feel bad if I used a stone) so I can get some macaroons. Ran out
right when I was about to cross over the 8000 mark. :P

Gonna be my first SR card.

On Jun 28, 2013, at 9:40 AM, Hitoshi Doi wrote:

> Oh, new Love Live catcher items..
> 
>    http://www.akiba-search.net/snap/?20130627
> 
> I spent several hundred yen trying to get Umi, but failed.
> 
> Timothy Yeh <tenton@mac.com> wrote:
> | 
> | > The Kotori event just started!
> 
> The limit to get SR Kotori is 8000 points.
> In seven days, that's doable, but not that easy.
> More on that at the bottom of this mail..
> 
> | What are the friendship points for?
> | I see I can buy cards with them (on the page with the stones for
> | rare cards page); is that what they are for? I have some points
> | I should use then. :P
> 
> You get one normal card for 100 friendship points.
> Very rarely, you will get a rare card.
> There is no bonus for waiting to get 1000 points,
> so with this one you can just get a card every 100 points.
> I think you will get some of the newer, unusual normals this way,
> so when you get two of them and max out the kizuna, you will get
> to download their story and get a stone.
> 
> About the Kotori event.
> Assume you have max of 45 LPs, your typical day will be as follows.
> 
> 08:00 play 3 hards (48 points) use up all LPs
> 12:30 LPs recover, play 3 hards (96 points)
> 17:00 LPs recover, play 3 hards (144 points)
> 21:30 LPs recover, play 3 hards (192 points)
> 24:30 LPs up to 30, play 2 hards (224 points)
> With the 224 points, you can play 7 normal event songs (210 used).
> This can be any time, as this has nothing to do with LPs.
> If you can average 133 each, that's 931 points for a total of
> 1155 per day.  Do that 7 days, and you reach 8000, barely.
> 
> But you also have 14 points left over per day, which adds up to 98
> for the week, so you can play 3 more normal event songs, for
> around 400 points.  So there is some leeway.
> 
> Also the above doesn't include the days you move up to the next rank.
> When that happens you get an extra full LP, so it's worth over
> 200 points (48+133+60).
> 
> One of my games is at rank 60, so it takes over 3 days to move up
> one rank.  The other game is at rank 44, so it only takes 1.5 days
> to move up one rank.  In one week it might be good for 1000 points.
> So for the events, being at a lower rank is an advantage.
> 
> The only good thing about being at rank 60 is that the max LP is 55,
> so I can play every 5.5 hours instead of every 4.5 hours.
> I won't have to wake up in the middle of the night to play a
> couple games. (^ ^;
> 
> You can basically calculate how many points you get, so when
> it gets close to the end of the event and you need LPs,
> then it may be worth it to use a stone to recover the LPs.
> Even if you have 5 stones, you will only get one random R card.
> Getting the SR guaranteed is much better.
> 
> Or if you can clear the 25 LP games, you get 27 points so that's
> a better percentage, and you won't have to play as many games.
> 
> I kept track of my daily scores for the previous event.
> 
> 06/12       436          400
> 06/13      1671         1180
> 06/14      3282         2147
> 06/15      5013         3266
> 06/16      6234         4494
> 06/17      7293         5455
> 06/18      8662         7095
> 06/19     10031         8768
> 06/20     11770         9961
> 06/21     13186        11485
> 06/22     14283        12804
> 06/23     15436        14621
> 06/24     16376        15895
> 
> In my first day of the Kotori event, I have 458 and 488.
> I paced my games the last few days so that I would rank up both today.
> 
> --
> Hitoshi Doi
>                          " this space for rent "
> http://www.usagi.org/doi/                                    doi@usagi.org
> 

--Tim