According to this article on 9to5 Mac: http://www.9to5mac.com/67397/toshiba-is-building-a-4-inch-720p-retina-display-maybe-for-apple/
Toshiba is working on displays for cell phones, including iPhone displays. This article states that they are working on displays ranging from 3.3" to 4" at HD. Now Apple definitely won't go below 3.5", so theres more hope for a larger screen..or them staying at the same size.
Thoughts?
Gotta admit, the iPhone 4 (left) screen doesn't look so appealing comparatively.
Toshiba is working on displays for cell phones, including iPhone displays. This article states that they are working on displays ranging from 3.3" to 4" at HD. Now Apple definitely won't go below 3.5", so theres more hope for a larger screen..or them staying at the same size.
Thoughts?

Gotta admit, the iPhone 4 (left) screen doesn't look so appealing comparatively.