Have to agree with vector brushes I have been rattling on about these since version 4 which is a long time. This is the number 1 improvement.
Also agree with bitmap tracer and if they do improve in this area they must include a facility to close stray points.
On a similar area as stray points and a tool that I use frequently in Illy is "Same" : Appearance/Attribute, Stroke - Fill & Colour, Opacity, Blending Mode, Fill, Stroke Colour, Stroke Weight. I use this a lot when hand tracing image and where I want a line/fill to stand out from the line/fill colour below I give it a bright colour. Then after finishing the trace I quickly want to give its finish colours and I use this method of doing it. Name colours I know can do this but it's a bit of a toil and pfaff in Xara.
The SVG export filter has to be updated as well since a few people on this thread are mentioning html 5.