One could argue that Microsoft has a similar chance with Windows, Xbox 360, and Windows Mobile. The interoperability among the three, however, isn't as streamlined and therefore not as consumer friendly as the Apple solutions, which are cleanly tied together through iTunes. And according to news reports, Xbox Live has something like 6 million users versus more than 100 million iTunes users, giving Apple a significant advantage in the number of eyeballs potentially leveragable across all three screens.
The real differentiator here could be the ease and usability of Apple's interface across all screens. Do you think the iPhone will allow Apple to capture all three screens? Or will Apple's closed front to developers doom this effort?