SQL Server 2008 introduces a whole bunch of new chart types for use in the reports. A list of the chart types that you get are:
Column Cylinder
Line
Stepped Line Pie
Pie Callout Doughnut Funnel Pyramid Bar
Area Range Polar Radar
Range Column/Bar BoxPlot

Each of these have a number of VI features (like exploded Pie version, Stacked or 3D bar/Column, etc.) as well. Over and above these, some more new features like having secondary axis, multiple charts with alignment and scale breaks are also allowed.

A completely new chart type called the Gauge has also been introduced in this version. You can use this to represent dashboard items like KPIs, or scorecard components in your reports.

As you can see, SQL Server 2008 Re¬porting Services has a huge number of enhancements as well as new features that have been introduced. If you are a developer who needs to query data and display it in a report, this is an option
that you should consider.