Excellent, now can we expect this firmware update for on-sensor phase-detect Canon DSLRs as well (650D, 700D, 100D), because they're just as painfully slow in live view.
How about for the G1X? Everyone was saying "firmware update" when that was released, and it is older than the M by far. It is still selling at a higher price point, even.
Canon 6d, t1i, 24-70/4L, 20/2.8, 28/1.8, 40/2.8, 50/1.8II, 100/2.8 macro, 70-300/4-5.6, g1x, 430exII, 90ex
Elan 7N with 28-105/3.5-4.5II, Rebel G with 35-70/3.5-4.5, A-1 with 28/2.8, 50/1.8, and 135/3.5