I haven't used it in years. What kind of features would you like to see?
This might be a lot to ask, but:
The PDF exporter would be great
And a super simple interface. It wouldn't have to be fancy, I'm not saying customizeable cheatsheets, but something where you could edit each field after you made it and maybe see a live preview of the sheet?
That might be a lot to ask for, but I could see myself getting a lot of use out of this if it had those.