A few questions:
1. Using dynamic data containing all 0 values (ie, a collection of 0's), the baseline appears near the top of the chart. Once non-zero data starts coming in, the baseline moves to the bottom of the chart as expected. By baseline, I mean a line series whose data is all 0's.
2. Using dynamic data, hot tracking tooltips don't disappear (happens when the data is refreshed).
3. Is it possible to put labels in the hot tracking popups (along with the colors)?
4. Do you plan on adding any simple axis? I would find a very simple Y-axis handy for displaying dynamic charts.