Geany anywhere anytime. Just uses your fpc install, from the KDevelop mention, I'd guess linux so a
Code:
sudo apt-get install fpc geany
should have installation covered - geany has everything I'd expect, object browser, all word completion, native .pas and .pp syntax support, auto (and customizeable) indentation...

Second place I'd give to programmers notepad (some builds work OK in wine) or anjuta.