Yeah, very good point. I'll add that in next. I just went with a simple date range because I wasn't sure how many API calls were really allowed -- it isn't clear if it's 5000 per-client per-day, or 5000 per-token per-day.
Yeah, I'm saving tags and all the other metadata like location in the DB. It's exposed via the API right now. It'll get added in to the UI sometime next week, hopefully.