Although I don't know the specifics of Etherpad, this would hopefully be a fairly simple text transformation:

For each line in the selection, add '//'. Unless every line in the selection starts with '//', then remove the first '//' from each line.

Hope this is possible, as quickly commenting/uncommenting blocks makes messing around way easier... :)

What if sketchpad could offer another drawing language ? ContextFree.js

See http://azarask.in/projects/algorithm-ink for a demo.

If a Sketch name is entered with extentions such as .cpp .h etc.... the system should automatically color code the data accordingly, instead or having to click in "Syntax-highlighting" and change screens.

there should be a tool where you can see how to make any colour you want using the rgb function

First session works fine but after that it's all "account not found"

Please allow us to create folders to arrange the sketches and visualize the data better please.

I can't delete a sketch ("tidy up" - as you suggest in the blog) because the "drag anywhere" blue render area covers up the Delete button. How can I get rid of the blue canvas temporarily, then bring it back when I want to render??

See above.

It is really annoying to have files that I've uploaded from another sketch or that I don't want use use and there is no way to get rid of them. Could you please add this feature?

allow two users to share keyboard and mouse events when collaborating (mouseX1, mouseX2, etc.) to create little games

IOS 5 supports contentEditable, yet the site blocks me off still. Am I wrong?

hi there! I'm trying to use a texture in a 3D scene. But when I activate the program it seems to freeze. (nothing happens, just a black canvas)

I tried this example: http://processing.org/learning/topics_test/texturequad.html
(with this texture: http://t0.gstatic.com/images?q=tbn:ANd9GcRnyPO1EOKm8Us-bG6PY6l1VxT9B22sc-zxBbhEBt6tRO_jNJowNeVfm3U )

It needs a console output so that i can see what is going on.

when using IE 10 with a sketch that is using P3D as the rendering mode it displays the error "Sorry, Processing.js is not supported in this version of Internet Explorer" this isn't because pjs isn't supported it is because P3D isn't supported by IE. This led to a little confusion. so just fyi

Here's the sketch http://studio.processingtogether.com/sp/pad/iframe/FDZ9mi2ala/rev.37

When it opens, it doesn't recognise keys. If I click the area then press e.g. 'c', it does.

How do I make it recognise keys from the start?

I customized the html in my sketch trying to include a library; then I ruined it ("Processing is not defined" appears in the code). But when I delete my customization, or go back in file history, the error persists.

I cannot seem to load multiple images into my sketch. Only one can be viewed at any time for some reason.

Please can someone explain why I can't type in normal parenthesis () in the editor? I just get a black highlight, {} works though.

Currently there is no option to use threads in Javascript, unless you hack your way in using JsLibs.