There’s been some concerns from iPad users that shrinking the screen to 7.85″ will make the buttons too small to be accurately pressed, if everything is displayed exactly the same as it is on the full size iPad. After some Twitter debate on the subject, developer and blogger Richard Gaywood made some mockups of what a few different apps could look like, if scaled down properly.

After taking a look at the icon sizes on both the original iPad and the original iPhone, Richard noted that while both devices have 44 pixel-wide tap targets, the iPad buttons are physically larger by 19%, due to the lower dpi (dots-per-inch) of the iPad’s screen. On a slightly smaller screen – say, a 7.85″ one – the button will shrink down to approximately the size that the iPhone buttons are now, assuming the iPad Mini’s screen resolution matches that of the bigger iPad.

If all of that is true, Richard’s mockups show exactly what some popular iPad apps will look like on a smaller screen. If you open his images up on a current iPad, you’ll find that they measure exactly 7.85″ diagonally.