Add UI for adding comments and ability to save them. Comments are represented in the document model as text annotations (annotations with Subtype Text). 

Load-On-Demand self-reference hierarchy provider

3D Charts will be a nice addition to the WinForms suite

Add functionality to sort tasks alphabetically, by date, by progress.

When the caret position is inside Table and a page break is inserted, the table should be split into two tables with a page break between.

Add functionality to filter items in RadGanttView. 

Implement a System Skinning Mechanism which enabels RadControls for WinForms to look like standard Windows Forms controls and adhere the currently set Windows theme.

RadRichTextBoxElement to be a custom editor of RadGridView

Add a property that can control whether a table row is allowed to break across pages or not.

This functionality should be similar to the one provided by Adobe.

This will allow the users to scroll through the tiles in all rows when the available height is insufficient.

WORKAROUND:
 class CustomPanorama : RadPanorama
    {
        RadScrollBarElement vScroll;

        protected override void CreateChildItems(Telerik.WinControls.RadElement parent)
        {
            base.CreateChildItems(parent);

            this.vScroll = new RadScrollBarElement();
            this.vScroll.ScrollType = ScrollType.Vertical;
            this.vScroll.StretchHorizontally = false;
            this.vScroll.StretchVertically = true;
            this.vScroll.MinSize = new System.Drawing.Size(16, 0);
            this.vScroll.Alignment = System.Drawing.ContentAlignment.TopRight;

            this.PanoramaElement.Children.Add(vScroll);

            this.vScroll.ValueChanged += new EventHandler(vScroll_ValueChanged);
            this.PanoramaElement.GroupLayout.RadPropertyChanged += new Telerik.WinControls.RadPropertyChangedEventHandler(GroupLayout_RadPropertyChanged);
            this.PanoramaElement.TileLayout.RadPropertyChanged += new Telerik.WinControls.RadPropertyChangedEventHandler(GroupLayout_RadPropertyChanged);

            this.ScrollBarAlignment = HorizontalScrollAlignment.Bottom;
        }

        void GroupLayout_RadPropertyChanged(object sender, Telerik.WinControls.RadPropertyChangedEventArgs e)
        {
            if (e.Property == RadElement.BoundsProperty && sender == this.GetCurrentLayout())
            {
                UpdateVScroll();
            }
        }

        protected override void OnSizeChanged(EventArgs e)
        {
            base.OnSizeChanged(e);
            UpdateVScroll();
        }

        private void UpdateVScroll()
        {
            vScroll.Maximum = this.GetCurrentLayout().Size.Height;
            vScroll.LargeChange = Math.Max(0, (int)(this.Size.Height - this.PanoramaElement.ScrollBar.Size.Height));

            if (vScroll.LargeChange >= vScroll.Maximum)
            {
                vScroll.Visibility = ElementVisibility.Hidden;
            }
            else
            {
                vScroll.Visibility = ElementVisibility.Visible;
            }

            if (this.PanoramaElement.ScrollBar.Visibility == ElementVisibility.Visible)
            {
                vScroll.Margin = new System.Windows.Forms.Padding(0, 0, 0, this.PanoramaElement.ScrollBar.Size.Height);
            }
            else
            {
                vScroll.Margin = new System.Windows.Forms.Padding(0);
            }
        }

        void vScroll_ValueChanged(object sender, EventArgs e)
        {
            this.GetCurrentLayout().PositionOffset = new System.Drawing.SizeF(0, -this.vScroll.Value);
        }

        private LayoutPanel GetCurrentLayout()
        {
            if (this.ShowGroups)
            {
                return this.PanoramaElement.GroupLayout;
            }

            return this.PanoramaElement.TileLayout;
        }

        public override string ThemeClassName
        {
            get
            {
                return typeof(RadPanorama).FullName;
            }
            set
            {
                base.ThemeClassName = value;
            }
        }
    }

The users will be doing a lot of drag/drop and there could be 10-15 appointments per day, so being able to see everything go makes the most sense. The row height should increace when containing more appointments and reduces its height if there are no appointments for that specific day.

To reproduce:
Format a document with tables in MSWord. For example Insert a picture to the left and a table to the right. Import the document into RadRichTextBox. You will see that the formatting is not the same.

Add support for shapes, and especially for shapes with textual content. 
In OOXML, shapes are represented by the wps:wsp element, and shapes with textual content by <wps:txbx>, <w:txbxContent>.
Such shape can be added to a Word document using the Insert -> Text -> Text Box -> Draw Text Box, or through a shape's context menu -> Add Text.

Note: Do not confuse with Text/Rich Text content controls (http://feedback.telerik.com/Project/154/Feedback/Details/156478 )

We had a request from a customer about the RadOpenFileDialog not showing the preview of the actual photo in the list.

Is this possible? With the default explorer version of OpenFileDialog, you can see image previews (second photo).