Yes, the Column Summaries feature is scheduled to be released as a CTP in a few weeks. The release is planned for 10.3, which is in October.

If I may ask... seems like we are still hacking to convert to a string to display as text in the footer.
Is there anything on the roadmap to add a "Show Totals in Footer" feature of the control itself?

Seems a common enough use, to have totals displayed on a grid.

Bud -

You should just be able to turn footers on like:

    <ig:WebDataGrid ID="grid1" runat="server" ShowFooter="True">

Each column would then have footer markup like:

            <ig:BoundDataField DataFieldName="Current_Month_Activity"
                Key="Current_Month_Activity" CssClass="cellRight"
                DataFormatString="{0:$#,##0.00}" Width="80px">
                <Header Text="Current Month Activity" CssClass="cellRight" />
                <Footer CssClass="gridFooter" />
            </ig:BoundDataField>

You can reference the footers in the code behind as well (this is me using .NET's DataTable.Compute):

                 //in page load

               grid1.Columns["Current_Month_Activity"].Footer.Text = String.Format("{0:C}", Convert.ToDecimal(data.Compute("Sum([Current_Month_Activity])", "")));

Does this help?

Was there ever an update that allowed you to set the footer text client-side?