It's not every day that a reader points out a utility that I've never even heard of. In this case, thanks to Garvin for pointing out LightNotepad, a freeware plain text editor for S60 3rd Edition. It works on any device, but is especially useful for editing HTML, javascript and other text-based languages on keyboard-equipped devices like the Nokia E90 and E61i. Grab it now! What's that? You can't speak Finnish? You need the English page then 8-)
Read on in the full article.
Oh, that looks great. I've been searching for something like this for a while, and concluded there was nothing out there.
The best I found (which isn't bad, but isn't free) is the text editor included with X-plore from Lonely Cat Games (which I'd recommend anyway, apart from the usual dodgy colour scheme).
Steve, is it possible for you to post screenshots of the program as i dont have a S60.3 device with me.. Also does it support keyboard shortcuts for copy paste etc.. ?
Here's a couple of shots on my 5500 (so can't comment on keyboard shortcuts). The text is the help text that the editor comes with.

(The right key is labelled 'Paste' as the edit key was pressed for the screen capture.)

(I was quicker on the screencapture 😉 )
On the e90, the ctrl-X, ctrl-c and ctrl-v shortcuts work okay. No ctrl-s shortcut, and haven't tried any others yet.
no find facility. even if it is limited to a 200k file then a search is very important. other than that a very nice little editor. without that will have to stick to easyedit or quickoffice on my e61i.
Andy, Thanks for the screenshots 😊
Hello ,
I found better even it's beta stage 😊 But it's a very promising editor for programming !
I'm talking about DEdit 0.9
features :
advanced search : casesensite, whole word
plenty of shortcuts with green key (press green key release it press other key !)
very intuitive !
green + Up : page up
green + down : page down
green+# : begin/end of file
green + Left : begin of line
green + right : end of line
advanced selection
bookmark add : green+2
goto to bookmark : green + 3
remember last file (history)
save cursor position
show non-printable characters
word wrapping on/off
And this editor is free : found on dimonvideo
Sorry but I haven't enough post for posting THE link 😞