Netflix has started to restrict its users from streaming more than one movie at a time as part of its price hike.
The change could have a major effect on how families use Netflix. No longer can one person watch a movie from the iPad while the rest of the family watches another film on the Xbox, for example
As website Stop the Cap points out, Netflix has always had a policy that limited streaming, with those on a single DVD or streaming-only plan limited to streaming one film at a time.
But it appears as if Netflix just started enforcing this rule on September 1. The changes seem to coincide with Netflix's price hike, which took effect on Sept. 1 as well. Now, if you attempt to launch two movie streams, Netflix will block it and tell you that your membership plan doesn't support multiple movie streams.
More:
http://www.cnn.com/2011/TECH/web/09/07/netflix.streaming.limit.mashable/Need to edit, I found more clarification: The news above is that Netflix is now ENFORCING their policy,
Depends on the plan you are on.
If you are on the Unlimited Streaming plan, the Unlimited Streaming + 1 DVD out-at-a-time plan or a limited streaming plan, you may watch only one device at a time.If you are on the Unlimited Streaming + 2 DVDs out-at-a-time plan, you may watch on up to two devices at a time. Members on the Unlimited Streaming + 3 DVDs out-at-a-time plan may watch on up to three devices at a time. The maximum is four devices at a time -- available for members on the Unlimited Streaming + 4-or greater DVDs out-at-a-time plan.