there is folder in nova launcher but u got to get the paid version. 1 thing i dont like about nova is i am unable to arrange my apps according to my choice, only alphabetical order

yea, i brought the prime version. to be honest, i find TW quite smooth but i still use nova coz it is slightly more forgiving in ram consumption and most important feature (to me XD), u can create folders inside a folder which TW doesnt allow at all. well, so far i only use nova launcher so i cant comment much.
i bought it during 25c promotion too =D alphabetical order is good but i prefer to have more choices instead of just 1. 1 more thing i miss when i use nova TW is the beautiful weather widget and i cant find any 3rd party alternative as good as that =(

Well, when bada os 1st come out, it's spec is same as s1 which also come out around that time.

I believe this is most probably because of high iso. This is due to the lighting. In auto mode, the camera always try to make sure the shutter speed will not slower than 1/17. So in places where lighting is not that bright, it will pump up the iso, that's y ur picture look grainy. The alternative is to switch to night mode under scene mode. This mode will will try to increase the shuttle time to not more than 1/2 before it start to increase the iso. The down side is u need to keep ur hand as steady as possible when taking picture coz if u r not, chances r ur photo will look blur due to high shutter speed.

I don't know how to use photo editor but I think u can do it that way. Try download snapseed and pixlr express from Google play and see how it goes.