Apple hinted on its iTunes Note that all its future devices, including the iPad 5 and iPad Mini 2, will sport Retina Display.

Apple's upcoming coming out this year could arrive with a higher resolution Retina display and that might have just been confirmed by a note that Apple posted about all new apps for the App Store.

The note is for developers that make apps for the iOS software and it is pretty clear what Apple would like developers to do starting on May 1st of this year. After reading the note, one could come to the conclusion that Apple is suggesting it will only be dealing with Retina displays on all future iOS products.

The Apple's note says, "Starting May 1, new apps and app updates submitted to the App Store must be built for iOS devices with Retina display and iPhone apps must also support the 4-inch display on iPhone 5. Learn about preparing your apps by reviewing the iOS Human Interface Guidelines."

It has been speculated for months that the iPad Mini 2 will obviously offer Retina display to differentiate itself from its predecessor. However, Apple is struggling from supply constraints. The good news is that the Cupertino-based company is preparing to launch the next generation iPad Mini with a screen boasting of a higher resolution than the Retina Display equipped current iPad 4. The retina Display of the next generation iPad Mini will be 324 ppi which is miles ahead of the iPad 4 screens' 264 ppi display.

According to reports, iPad Mini 2 will feature a screen with a resolution of 2048 x 1536. This is almost four times the resolution of the present iPad Mini and is equal to the fourth generation iPad which was released along with the iPad Mini last year. AU Optronics has been rumoured to be making displays for the iPad Mini 2.

Other specs include a more powerful dual core A7 processor and a 7.9 inch screen. It will also feature a 10-hour battery life, a FaceTime HD camera, and an iSight camera with 1080 pixels HD video recording. Apple is also trying to reduce the thickness of the iPad Mini 2 by using the Sharp's IGZO (indium gallium zinc oxide) technology in its screens.

On the other hand, the iPad 5 is rumoured to have no bezels, and the whole form factor has been made sleeker. Horowitz believes this design indicates that Apple will be calling on Sharp's IGZO screen technology. Sharp, however, according to Horowitz, has been struggling, and its ability to deliver components on time will play a key role in the release of the next iPad.

The devices are speculated to arrive later this year.