With the release of Apple's iPhone 6 and 6 Plus, developers face the challenge of adapting to new screen resolutions to prevent apps from appearing blurry due to the default lower resolution setting. Ionic's framework offers responsive styles that address this issue, but developers must execute specific steps to fully utilize the new iPhone resolutions. This involves updating the Cordova version in their projects via the Ionic CLI and adding correctly sized splash screens using the confix.xml file. The Ionic CLI simplifies this process with the resources command, which automatically generates the necessary splash screens for the iPhone 6 and 6 Plus, allowing apps to maximize the screen space offered by these devices.