After some work, I've got a Google calendar populating with paper US Vintage events (International and Online ones in the near future). It's all at a glance type stuff, but it's nice to see everything in relation.
If you want to add an event to your own calendar, you can click Copy Event, like the below screen shot.
If you've got questions, comments, or concerns, reply here or tweet '@darkr3x' or '@CMTYCalendarMTG'
See you all at an event soon!