Am 3.2.2011 schrieb Wolfgang Schuster:

> Am 03.02.2011 um 18:38 schrieb Philipp A.:
> > for the record: the TikZ package has built-in parameterized speech
> bubbles.
> Can you make a example?
>
> Wolfgang
>

of course.
you can read about it in the pgfmanual in chapter 39.7:

\usepackage[tikz]
\usetikzlibrary[shapes.callout]

\starttext
\starttikzpicture
    \node[ellips callout, draw] {Hallo!};
\stoptikzpicture
\stoptext

using the options callout relative pointer=(coordinate) and callout absolute
pointer=(coordinate), you can modify where it points to, using standard node
options you can modify other aspects (positioning, padding, width, height,
color, line thickness, …)

beware: i have not tested above code, but it should be obvious.

Philipp