The item reorder works on mobile, but not Desktop.
Available in the R1 2018 release.

First the control is loaded, then operations (like grouping) are applied and this leads to flickering.

Available in minor release 2017.3.1103. It will also be available in the R1 2018 release.

On Android, when grouping with IsItemSwipeEnabled=True, the Group Header is accidentally swipe-able and reveals the ItemSwipeContent.

The issue is presenting on Android, but not iOS (UWP unknown)

v 2017.2.818.234

Available in minor release 2017.2.0818. It will also be available in the R3 2017 release.

In multiple selection scenarios with ItemSwipeContent when the item is swiped, the selection indicator hides the content of the list item.

You can reproduce the issue with the SDK example http://docs.telerik.com/devtools/xamarin/controls/listview/gestures/listview-gestures-cell-swipe.

In UWP everything looks fine, but in Android both labels of the item swipe template appears.

When setting LineSeries StrokeThickness value in the PCL project (XAML or code-behind), it is not respected at runtime in the iOS project.

For now, the workaround is to use a custom renderer to reset the TKLineSeries's Palette with a new  TKPaletteItem containing a TKStroke with the preferred thickness value.

Provide GroupItem tapped event and unify the life cycle of item tapped. Currently, item tapped is raised on Android but not on iOS.

Available in the R1 2018 SP release.

More information: https://docs.telerik.com/devtools/xamarin/controls/listview/features/listview-features-events

Provide a notification mechanism when the user holds on a specific item.

Available in the R1 2018 SP release. More information: https://docs.telerik.com/devtools/xamarin/controls/listview/features/listview-features-events

Expose API allowing users to change the style of the dragged item(s).

Available in the R1 2018 SP release.
More information you can find here: 
https://docs.telerik.com/devtools/xamarin/controls/listview/features/listview-features-events
https://docs.telerik.com/devtools/xamarin/controls/listview/features/listview-features-styling

When you have an Image inside the ListViewTemplateCell like this:

<telerikListView:ListViewTemplateCell>
    <telerikListView:ListViewTemplateCell.View>                         
                <Image Source="{Binding ImageSrc}" HorizontalOptions="Center" VerticalOptions="Start" />               
    </telerikListView:ListViewTemplateCell.View>
</telerikListView:ListViewTemplateCell>

in certain cases not all images are initially rendered.  As soon as you click any of the images, all of them are loaded.

As a workaround, avoid setting HorizontalOptions/VerticalOptions properties to the Image.

We should consider adding such behavior where if the user clicks on the currently selected item -> it is not deselected. Currently, there is a workaround by working with the SelectedItems collection , keeping reference of the latest selected item and programmatically selecting it in case the collection is empty. 

When you have set a group header template to the ListView and you rotate the Android device from Portrait to Landscape, the group headers that fail within the visible field are cut off.

Edit: Avalable in R3 2017 SP release.

When you have placed the ListView within a StackLayout and the number of items is greater than what the screen can fit, the following undesired effects are observed:

in Android: The last item is cut off 

in iOS: You are not able to scroll down the list and it always bounces back to the original view

Enable easier access to selected items in the Viewmodel in MVVM scenarios through bindable readonly property.

Available in minor release 2017.2.0721. It will also be available in the R3 2017 release.

In a scenario where the RadListView is added to and removed from the visual tree multiple times, a memory leak occurs and the gref count always increases.