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).

Customers request that the chart show one additional point on the left and one additional on the right. This way RadChart creates a nicer illusion of a zoomed in graph.

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

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.

Need to add custom style when exporting RadChart with bar series definition.

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

Slow performance when setting AutoRange = false on Button click with Spline series definition

REASON FOR DECLINATION
This is supported out-of-the-box by the new RadChartView (the new chart offers a much better performance rate).

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.

Bindings don't work for axes in the AdditionalAxes collection of the chart area. Wpf only.

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

When two or more range series are used -  the range bars are overlapping each other, they are being placed one on top of another instead of being placed next to each other (as is the behaviour with regular bar series).

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

Chart: Chart is not updated when the IsLogarithmic property of the AxisY changes at run-time. The issue is simply reproduced when the IsLogarithmic changes at run-time and the chart is resized.

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).