SNI is currently supported by about 50% of browsers in the wild. The vast majority of the non-supporting population are IE users on XP or earlier. Since there'

SNI is currently supported by about 50% of browsers in the wild. The vast majority of the non-supporting population are IE users on XP or earlier. Since there's almost no chance that Microsoft will ever update XP, we'll probably have to wait for years until we start hitting useful numbers like 90%+ :(