let's see here. 1) taking push notifications away from third party apps will not only! affect the blind. twitter is mainstream, and apps like twitterrific are also mainly mainstream. I mean, the guys have like 500000 followers, so yeah. so I would personally keep the blind card out of this, purely because we're not the only ones affected.
2) some of us have paid for these push notifications. so for twitter to take them away like that, first of all, makes us waste our money, makes devs feel like they ripped us off, and it will feel as if they wasted their times coding it.
3) every up to 250 account, will cost $2800. right, so let's see here. let's assume, that twitterrific has 200000 active users for a second. again, they have 432900 something followers, so we'll assume with 200000. let's divide that by 250, and we get 800. now multiply that by 2800, and you get 2240000. so essentially, since twitterrific has 800 times 250, without the discount, this is how much they would be expected to pay, since they'd have to pay the 2800 after 800 times 250. now to those of you, who thinks that the new API will be better, do you still think that way?
I'm almost certainly sure, that twitter won't just tell apps like twitterrific to pay them 5 grand, just to let 200000 users to continue having push notifications. I'm also not sure if this is monthly or yearly, but frankly, that won't make a difference. refer to my calculation if needed again.