Mads Kristensen is back, today with a VS Extension that will help VS Extension builders build Extensions. That is so meta I had to highlight, even through it's currently at v0.2 (might be at 0.3, 0.4 by the time you read this... :)
Speaking of Mads, are are few other recent times we've...
active development
brace matching
classification
content type
development
document encoding
editor
extensions
features
formatting
hover tooltip
intellisense
mads kristensen
pkgdef files
snippets
source code
syntax highlighting
validation
visual studio