Well, a week yes and the next one too, there is some request to add pdf modification options either to kpdf or to okular. This requests are always dismissed with "kpdf/okular is 'just' a viewer, not a swiss-tool".
That said i started to look for pdftk frontends i could suggest to the people and i could not find any good one so i thought i can try to create 'PDF Transformer' (work in progress name) as a "good" frontend for pdftk. The problem is defining "good", so fellow readers i'm asking for some help here, i'd describe what i have in mind and hope to get some comments if it seems good or not. Also if you know of a "good" frontend for pdftk just tellme and i'll be happy to scrap one thing from my todo list.
pdftk can do lots of things that are easy to do in dialogs and a relatively user friendly way, it's just merging of documents, modifying page ordering and removing of pages that i'm not sure how to implement in a way that can be more easy than just typing the whole command at the cli. My current idea is in this this mockup. You open the document[s] you want to use as input and get the list on pages on the left and a preview of the current selected page, you can rotate the currently selected pages, move them up or down or remove them. After you are finished you "create" the output file.