As far as I know there is no firm prediction of any Lorentz bending derived from mainstream Loop. The authorities on what Loop says or doesn't say are Ashtekar, Rovelli, and Freidel. These are the people that organizers of any major world conference on gravity and related science would normally invite to give the Loop plenary talk. Examples of relevant conferences: The Marcel Grossmann meetings are held every three years. Most recent one had over 600 participants. Top committee includes Hermann Nicolai and Steven Weinberg. The other main series is the GRG (General Relativity and Gravitation), which also happens every three years and gets about the same number of participants. The most recent one, GRG 18, was held in 2007. At Marcel Eleven, in Berlin 2006, Ashtekar gave a Loop overview and FAQ to plenary session. Marcel Twelve, in Paris 2009, had Freidel give the Loop plenary talk, while Ashtekar chaired the session. Strings 2008, in Geneva, had Rovelli give a Loop overview in plenary session. GRG 18, in Sydney 2007, had Freidel give the Loop plenary talk, and GRG 19, planned for next year, has invited Rovelli to do the same. Major international conferences like this help to define and identify the mainstream. At the really big ones like Marcel and GRG there will be many Loop talks presented in several split-off parallel sessions, plus one or a small number of main talks in plenary session where all the participants are gathered in one hall. None of these talks would have indicated that Lorentz bending had been derived from Loop as a prediction, because that is simply not the case. Humanino already cited Ashtekar's 2006 talk, and pointed this out. It's on line. Rovelli's talk to Strings 2008 is on line. Freidel's Marcel Twelve slides are on line. If anyone wants links please ask me. Currently the authoritative review article on LQG is this one by Rovelli dated May 31, 2008. http://relativity.livingreviews.org/Articles/lrr-2008-5/ [Broken] There is no competing review that is equally current.