In the Netherlands you can watch it via NOS. They have explanations for how to watch it on your pc, mobile, tv, radio, twitter/fb. See http://nos.nl/os2012/volg-de-spelen/.

To watch on your pc, they partnered with Youtube Live: http://www.youtube.com/user/nosnlsport

which gives me: "The uploader has not made this video available in your country. " which is a bit strange (living in the Netherlands).

Fortunately it is quite easy to proxy stuff via the UK :)