Is it possible to add layers (and features) in XAML?
Eg (made up tags - and add angle brackets as needed!):
my:wpfmap
my.wpfmap.overlays
my.inmemoryfeaturelayer key="Cars"
feature x="{Binding Position.x}" y="{Binding Position.y}"/
/my.inmemoryfeaturelayer
/my.wpfmap.overlays
/my:wpfmap
Thanks