I love Omega; even more so after recently developing a number of sites using 4.x. While the changes from 3.x have left many site builders unhappy; developers should be ecstatic. Ultimately Omega doesn't make as many assumptions & in turn provides a much blanker canvas than before. One of these freedoms is allowing devs to set their own (breakpoints) media queries. Not like you couldn't override those already setup in 3.x; most people just used the predefined ones as it served an easy win.