Currently, the field name is also used as Column Heading & Field Label.
It would be nice if you could have a field name (used internally in Javascripit and field("nnnn") statements) and different text literals for Column names & field labels. So if I wanted to call a field "PP1PRC", I could have a Column heading of up to 3 lines:
"Price\nInc\nVAT"

and a field label of "VAT Inclusive Price"

It would allow more flexibility in formatting. iI would also mean you could change labels without changing field names and breaking any Calculation, javascript or triggers.