Apple's dual-screen bet is drawing developers in fast. The company says there are now 100,000 apps optimized for the iPhone Duo, with thousands more landing every day, according to TechCrunch.

The pace matters because the Duo is barely two weeks old. New hardware form factors live or die on third-party support, and early momentum suggests developers see the second screen as more than a novelty. Apple's public tally is also a signal to holdouts: the audience and the tooling are already there.

The experimentation is visible at the consumer level, too. MacRumors, which rounded up fun Duo apps at launch, has published a follow-up list of 30 new picks, noting that developers are continuing to come up with fresh ideas for the format two weeks out. From utilities to toys, the early catalog is skewing creative rather than purely practical — which is usually how new interaction models find their killer apps.