Canon's website confirms their March 26th date. I have talked to two 'local' camera shops here in the San Francisco Bay Area who have some now and are getting more today. For me, I can wait another day or two and wait for my orders from B&H and Amazon to arrive and save me $$$ on tax. I'm guessing they will both be here by Friday March 23rd.
5D3, 6D, 1D4, 16-35 2.8L ll, 50 1.2L, 50 1.4, 24-70 2.8L II, 135 F2.0L, 200 F2.8L ll, 70-200 2.8L II, 70-300L, 100-400L, 24 TSE L II, 85 1.2L II, 100 2.8L, ZEISS 100 2.0, ZE 50 2.0, ZE 35 2.0, ROKONON 35 1.4, SIGMA 35mm f1.4, SIGMA 85 f1.4, S110, S100, sony RX-100 and one big-a$$ bag