Remember IWD, IWD2, BG and BG2? They all didn't have running in it. The only ones who could run where your enemies. Unless you had boots of speed, which were often found in BG2, but still.
PST, Fallout and Fallout2 do show that running is possible for players too. <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" />
