In which units is the Font size measured for textblocks in SilverLight.
is it in points or in pixels or can i set fontsize to be in point using Expression Blend.
FontSize
Specifies a non-negative value as the desired font size in pixels.
The default value is 14.666 pixels, which is exactly 11 points.
Read this page for more information on text and fonts:
http://msdn2.microsoft.com/en-us/library/cc189010(vs.95).aspx