Merrill Lynch analyst Steven Milunovich thinks Apple and Sony could be working on some big things. On top of his list is a new high-end workstation based on the Sony/IBM/Toshiba Cell processor. (Go ahead and start some rumors about a new Cell-based PowerBook). Other possibilities include the oft-speculated iMovies movie store and a network-enabled TV or media server/set top box. All of this conjecture seems to be a result of Sony President Kunitake Ando's presence on stage at Macworld. After all, why was he there? Just to say hi or to give Merrill Lynch analysts something to write about?