Apple's next generation smart phone will be featuring a 4.7" display which will be coming this year. According to the Apple's top analyst Ming-Chi Kuo, iPhone 6 will feasibly going for a release in the month of September, 2014. Various start up news depicts that iPhone 6 will be the super-slim iPhone by Apple, as the design acquired by latest iPod Touch.
As report says that Apple is also planning to release a 5.5" display screen of iPhone 6 which might get released in the year 2015. As rumors are there that iPhone 6 will be coming with iOS 7 or it is expecting that it can come up with the upgradable feature of iOS 8, which is going to release on 2nd June, 2014.
Rather than using 'in-cell' technology, Apple will be going to use 'on-cell' touch technology, which would have more touch sensitive display as the touch sensors are placed on top of the cell. This will also helps Apple to introduce thinnest iPhone. The 'in-cell' technology was also used by all other mobile companies.
As there is no additional layer on the touch screen, it helps manufacturer to construct thinner smart phones with high quality screen panel and rapid screen response with superior color reproduction.
iPhone "on-cell" technology will help Apple with cost cutting measures along with keeping the advanced options for betterment and slim designing issues intact which they have developed for their future products.
After, all this rumorous information about iPhone 6, we need to wait for Apple's official announcement for confirmation of this redesigned and thinnest featured iPhone.