It does seem like SC and perhaps WC or WC2 would make really good, relatively inexpensive ports that would rack up significant sales assuming they had local and distance network play.
Games aren't really the #1 thing I want on my iPhone, but I think the iPhone is a case where the standard operating procedure for the console handhelds (esp. DS and GBA, and now even for the live arcade systems that the newest consoles have), where many old games from the catalog are re-released makes a lot of sense. It would be great if the major development houses made a quick catalog of games from the GBA/SNES/N64/PSX/Saturn eras available for the iPhone, as well as games from the appropriate computer era, like SC.