Ok, so my EOS M + 22mm f/2 kit arrived today, but my Dashpoint 20 is still en route. However, last night i had a mini epiphany, and it turned out to be a good one. When I switched my Speedlite setup from a 600EX-RT and two 430EX II's to three of the 600's, I bought two more Lowepro Quick Flex Pouch 75 AW cases for the 600's, and was left with one of the Lowepro Quick Flex Pouch 55 AW cases for a 430EX II that I no longer had. So last night I thought, I wonder if the EOS M will fit? (As a side note, I use a Lowepro Lens Exchange 200 AW as an ideal case for transporting my disassembled RRS PG-02 LLR gimbal head, and a Lowepro Lens Case 9x13 for my RRS BH-55, so I don't mind using a case intended for a flash to hold a camera, instead.)
It turns out that the EOS M with the pancake lens mounted fits very nicely in a Lowepro Quick Flex Pouch 55 AW. There's a small internal pocket that will hold a battery and spare SD card, there's room for a strap to be rolled up inside the case, and the case has a Sliplock attachment and a tuck-away all-weather cover. There's a snap closure in addition to the zipper, for quick access when actively shooting.