I was pretty much living on German time during the conference, despite watching it from Australia. Even on a fairly pathetic connection I was able to stream the SD streams during the day, and the HD streams during the night. I was even able to fall back to audio-only via Skype for about an hour when they had technical issues at the start of the streaming.
Source: been twice, watched live this year, downloaded all the talks in HD a few days after it ended.