It's decent, however, the little dot that follows your cursor seems to block the buttons, preventing you from clicking on them unless you flick your cursor fast enough to reach the button before the dot gets in position.

Does load and work on tablet/mobile.
Brush seems to default to a dotted line appearance for some reason.
Lowest pen size is still pretty big for the given canvas size.
Trash can is somewhat uncooperative.
It is possible to draw outside the intended canvas.
Eraser is good.
Canvas should take up more of the space, User interface should be smaller and more compact.

Not a bad start, could be a neat little tool with a few tweaks.

Good Game, but this game got some bugs, like the pencil and the drag.

the pen is broken and the whole whiteboard got deleted..

It's kinda buggy one (buttons are not really working 90% of time and I don't really understand how drawing works here, sometimes I just can't stop drawing no matter what to do), but it has a potential to become a decent one. For now I'll just say no.