"For my app Drafts, I try to make use of whatever options are available to easily output text to other services," Pierce said. "The new sharing features, and the ability to programmatically create reminders in the Reminder app, are features I have already incorporated [for the iOS 6 version of the app], and am excited to get out to my users."

"The improvement I'm most excited about in iOS 6 is not an API, but Apple's [Over The Air] OTA updates," Barnard said. "If Apple is able to push iOS 6 OTA to all existing iOS 5 users, that's going to be a big deal for the ecosystem. Last fall, iOS 5 adoption was off the charts, [so] I expect iOS adoption to be absolutely shocking." That means App Cubby will quickly be able to target just iOS 6 for software updates, taking advantage of all its under-the-hood improvements. Barnard's favorite of those? "iOS 6 ... almost makes localization a no-brainer."

Ovemar agrees regarding the benefits of what he expects will be iOS 6's quick adoption rate: "It feels even more okay to let go of iOS4," which can't do as much as powerfully as the later versions of the operating system.

For his part, Haddad is most excited about "the new auto layout stuff that's coming over from Mac OS X," which he says "is really promising." Tapbots spends "a lot of time laying out each screen, and hopefully this will help dealing with future screen changes [and make] things like device rotations behave a bit better."