One thing I'd love to have is an area in the admin section of Softaculous which shows all the installs on the server and also the ability to upgrade them etc.
I think it'll make it easier for those users who are less sure about updating, I like the fact you can use it while logged in as a reseller/root but tracking down each install can be tricky, a nice list of them all would definitely be of use!
Must say I'm very impressed so far, at the rate you're going I'm going to have everything being controlled by Softaculous!