In Pathfinder, wizards are often required to have a bonded item which is in the form of a amulet, ring, staff, wand or weapon. I was reading a guide to wizards which lamented about the loss of the magic item slot (which I can agree with).
But after reading the arcane bond entry, it describes how it must be worn or in hand. I take it that if you got the weapon and just wore it on your side then it would not be sufficient?