It would be really neat if you could tap a number and drag it left or or right to adjust it's value. Everything would recalculate and you could have a small dia

It would be really neat if you could tap a number and drag it left or or right to adjust it's value. Everything would recalculate and you could have a small dialog box out to the side to adjust the increment level of the 'drag adjustment'. An iPhone screen probably wouldn't have room for the dialog box so you could putting it in settings but for iPad it would fit just fine.