Observable Effects of Quantum Gravity
  We discuss the generic phenomenology of quantum gravity and, in particular, argue that the observable effects of quantum gravity, associated with new, extended, non-local, non-particle-like quanta, and accompanied by a dynamical energy-momentum space, are not necessarily Planckian and that they could be observed at much lower and experimentally accessible energy scales. 
Lay Nam Chang, Djordje Minic, Chen Sun, Tatsu Takeuchi
gr-qc hep-th