Implement two-dimensional Radar / Polar series type for WPF / Silverlight.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

On data change RadChart should redraw only the series items that are actually changed, and not the whole series.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Implement logarithmic X axis in RadChart.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Additional functionality for creating labels and flags over the annotation is needed.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Track values of current mouse cursor X position.
Can be seen here: 
http://www.google.com/finance?q=INDEXDJX:.DJI,INDEXSP:.INX,INDEXNASDAQ:.IXIC
and here:
http://people.iola.dk/olau/flot/examples/tracking.html

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView (TrackBallBehavior & CrosshairBehavior).

Manhattan Bar 3D Series Type (with support for real Z axis)

Decline reason: You can use the new RadChartView3D BarSeries3D.
http://docs.telerik.com/devtools/wpf/controls/radchartview3d/series/barseries3d

Currently the axis labels are rotated around their center. The rotated labels top edge should be aligned with the center of the corresponding data point (e.g. bar).

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

The user needs to replace the TextBlock with a CheckBox.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView (axes have a LabelTemplate property).

Support for multiple X axes on the same chart area.

eg: Graphing the amount of products sold, per category, as a bar chart
+ a line chart showing the cumulative total of products sold over the past year.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Provide the ability to align all labels to the left or right at a specified margin from the pie chart.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

The options how RadChart draws the pie/doughnut slices need to be extended - there should be a clockwise and anticlockwise direction.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Separate the style of the AxisStyles.GridLineStyle into MajorGridLineStyle and MinorGridLineStyle

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

The user wants the Y axis appear in the right.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Implement option for automatic layout for axis item labels as the current mechanisms that solve the label overlapping issues with many data points have their limitations:

LabelRotationAngle - The desired rotation angle changes based on how many data point

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView (axes have a LabelFitMode and a SmartLabelsMode property).

The control should be able to automatically distribute the axis item labels on different step levels in order to improve the text visibility of very long axis item labels. Currently this functionality is supported only manually through the AxisX.StepLabelL

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

The chart area is virtually split into a Grid of n rows an m columns. For each cell you can specify a color.

REASON FOR DECLINATION
This is supported out-of-the-box by RadHeatMap.

Add click event for axis items.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView (axes have a LabelTemplate property, use it to customize appearance and handle click).

Allow for smooth real time chart panning/scrolling.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.

Stick / CandleStick series types should support item labels for Low, High, etc.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView (use the LabelDefinitions property of the series).

Allow the chart to be put in a "series/item hovered" state by API.

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView.