I've implemented tabbing in the code area but it doesn't work in Chrome as of yet.

I've figured out how to do this. Vote up if you think it's worth it.

A feature to submit comments would be nice. It would be a place to discuss the sketch, feedback to the author or discuss related items.

When I was browsing sketches, I saw some empty/defective sketches, they should be hidden or be put on low priority
Also, we need a rating system and "Featured sketches" system

Not an urgent idea as its' nothing to do with the app itself but it would be cool to Publish to Facebook and Twitter. I believe Facebook has a canvas API, so you might be able to get the vis running in facebook posts. I'm sure once people started seeing you could do it, it wouldnt be long before you needed a server upgrade :P

Is it possible at all to get error messages when the script does not work? Some understanding of why it is not working.

Would be awesome to get the prinln() and print() functions out-putting to a window like it does in the native processing application.

Mouse X/Y coordinates are off by a significant and seemingly arbitrary amount in Chrome. Works fine in Firefox.

Zooming in and Zooming out changes the amount it is off by.

What fonts do you have that we can use (if PFont works)?
Havnt been able to get this working here...

The non-interactive sketches here work fine on the iPhone/iPad but not the interactive ones. If you add some mobile safari detection then you can lock the zoom factor and turn touches into mouse events and this could really shine as an IDE for these devices.

Allow the profile to have a little more info. At least a user's website link.

Ability to fork foreign script or even to fork forked script. So anyone could put his new (maybe better) idea. Author of script could be noticed about fork of his script (or maybe even subfork)

It would be awesome if there was some sort of code compatibility list.

I know that hascanvas is an implementation of processing.js, thus making the function "delay()" unavailable.
But I also noticed that I cannot create P3D sketches.

So, perhaps there should be an overview where is shown which of the functions in the reference: http://processingjs.org/reference
are functioning or not.

I would like to see the ability to mark certain sketches and/or users as favorites from within hascanvas.
So that you can browse them when you log into your account on hascanvas, and don't need to bookmark everything.

Perhaps we could also get update notifications on the users/sketches you favored.

I've lost my code two times. Please could you pay more attention to people's work and use some kind of version control system

hasCanvas doesnt seem to like checking if your mouse is in between some coordinates such as:
if(mousePressed && mouseX > 0 && mouseX < 50 && mouseY > 0 && mouseY < 50){
}
obsessing.org works with this just fine.... its a bug?

It looks like it always starts at the oldest sketch. Maybe start at the newest and add page X of Y selection instead of just page next/prev?

It would be really cool if we could use external javascript libraries such as Box2D or SoundManager 2 in our scripts. There could be a button that would popup some options with checkboxes to select different libraries to use in your scripts. (If you decide to allow the use of a sound library, make sure to add a mute button!)

Ability to browse through sketches without going to the Browse window.