1] 358/2 Days did NOT suck. It's very well made game.
It DID suck, because of a lot of reasons.
1. The graphics were some of the worst i've ever seen, even for a DS game. Dodgy outlines and movements. If you look at the Keyblade when it's in Roxas' hands, its actually 2D, as thin as paper.
2. The storyline never advanced, you spent the whole time doing boring missions that you have to do 3 times over.
3. The Heartless were just plain stupid. They couldnt be bothered making new ones, so they just made larger, different colourd versions of old ones.
4. You had to wait for ages for something new to happen.
5. The Keyblade system was crap. They shouldn't have bothered with all of these attatchment thingies. They're completely screwed over, and there isnt enough space to put more that a few on there.
6. The storyline in itself is boring and tasteless compared to the other games in the series. This game just recycles old characters, worlds, enemies and stuff like that. They couldn't be screwed to make a new main character! (And Roxas isn't a new main character, he is another recycled one as well. His role should have ended with Kingdom Hearts 2.)
I think it was a bad idea to put such a great series into the Nintendo DS. It just doesn't belong there. It was meant for the television :P All in all, I think it was an

But thats my opinion.
2]Kingdom Hearts Birth By Sleep is coming this summer, That was Square-enix said on their official website.
But I am looking forward to Birth By Sleep. And it ISN'T coming out in summer because summer finished at the end of January.