Yeah, I'm trying to figure it out. I installed iFocus after it stopped working. The last focused picture I have is from 14/06. Photos from 15/06 already are unfocused. And I am pretty sure that I didn't install any applications that day, and didn't bump the device anywhere. I don't know what could have happened. Bad luck maybe.
Considering I reflashed the device and it still doesn't work, I'm afraid it's really a hardware issue.
Well... anyway, thank's for the help, maxximuscool!