[hmigneron]

Not quite a concise summary, but looking at the documentation, the biggest changes I noticed were :

- Responsive design using media queries

- CSS Progress bars

- A few new javascript plugins (Carousel, Typehead)

- Icons

The documentation is online here in case you missed the link the article : http://markdotto.com/bs2/docs/index.html

Maybe someone has a better summary

[firefoxman1]

Typehead is really responsive too. Especially for how fuzzy its matching is.