Small note... his picture came from
http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC#Levels
The 150Mbit/s is at the "Max video bit rate (VCL) for High 10 Profile" column
and the 200Mbit/s is at the "Max video bit rate (VCL) for High 4:2:2 and High 4:4:4 Predictive Profiles" column.
I personally have no idea what they both mean.