Dumbledore: All-Seeing, Really Smart, or just Lovable Coot?

[uncmark]

No: HPFGUIDX 35431

I have a question concerning Albus Dumbledore. He seems at times all-
powerful, the ONLY wizard Voldemort fears. In SSt he knows 
immediately when Harry moved from the cubboard. (His second letter 
was addressed to "The smallest bedroom, 4 Privet Drive".

Considering he partnered with Nicholas Flamel in creating the 
sorcerer's syone, Dumbledore's probably at the top of the field. 
would guess he might have sort sort of magic mirror to search for 
evildoers or just keep watch at Hogwarts. 

At times he seems to know everything, yet missed Voldemort hiding in 
Querill, Tom Riddle hiding in Ginny, Pettigrew hiding as Scabbers, 
and Crouch hiding as Moody.

So how omniscient is Albus? Does he have some sort of magic mirror or 
crystal ball that shows him all when he looks?

Opinions?

Uncmark