Create a simple icon font set for standard balloon types to be part of framework

[stereoket]

[KiloTango]

Another idea on this (I was just thinking about balloon tail positioning) might be using something like Raphael.js, an js SVG library. With something like you could actually knock up a system fairly easily that could point the tail at a particular element regardless of where it is on the page (via reading that element's position and redrawing the poly for the tail appropriately.

[stereoket]

This is an idea, yes. I think there will need to be a regular normal set and very custom created balloons. Tails or entire baloons may be hand - drawn in a "CAPOW" editor - or packs created that can be stretched and manipulated.

I've used Raphael for some basic charting in the past.