Guys, came across another problem, thought I'll share it again.
Earlier today i wanted a photosphere, but it just wouldn't work. I couldn't align to a dot, it moves away together with my hand movement. Hard to describe it properly, but the point is, I couldn't use it effectively. I thought it was a photosphere problem, but since I don't exactly use it much, so whatever.
Then later I tried some gaming, played Giant Boulder of Death (funny game, recommended if you played Katamari before

). But when I tilt my nexus, the boulder wouldn't move where I tilt, it just went straight. That's when I realize it wasn't photosphere's problem, but my gyroscope. So I tried Into the Dead, but surprisingly, that works. My screen rotation is flawless too.
So I installed Androsensor, and sure enough, it couldn't detect my gyroscope. Maybe screen rotation and Into the Dead uses accelerometer or something..
When I checked online, people say its due to an update to 4.3. Anyway, I just restarted my tablet, and its fine now..not sure for how long though. Will check time and again, so those who fear it might happen to you too, please do check. Funny thing is, I have successfully taken a photosphere some time ago before, and playing GBOD was no problem like 2 days ago. So it just recently happened, it wasn't like this since day 1 i got it or something.