There's plenty of space for two, a prototype design with two ports even leaked a few years back
And yet one. It's not like the air even had a cornucopia of ports. It's not like i think it NEEDS them. But seriously, one port for everything?
I would already own one if it had two jacks, but that's just patently ridiculous. One port arguably is barely enough for a phone, much less a full on computer that's expected to be a device host for even just like, a flash drive.