It would be great to have compatibility with certain mods like Tinker Construct, Create, Mekanism, etc so that they can also show the proper values ex:

Tinker Construct Slime durability is properly shown
Create backtank show the amount of use before the tank is depleted instead of the durability of the tool
Mekanism show the energy inside the battery or cube
Botania show the mana inside rings and tablets
And more interaction of the sort

It might be better to put that in a standalone mod instead of built in tho (so if anyone sees this and knows how to do it, please do!)

you can check out DuraDisplay when it gets approved on CF