I found out that createOutline() is the right function to convert Text into Paths. But I have strange bug, I think.

This is my code:

var position = new Point(100,-100); 
var textItem = new PointText(position);
textItem.content = "1234";
textItem.characterStyle.font  = app.fonts["Arial"];
var outline = textItem.createOutline();
outline.fillColor = new CMYKColor(1, 0, 0, 0);

and this is the result:

looks like if the character gets a shift (2 becomes 0, 3 bekomes 1 etc.)

I am using (Mac OS X 10.6.6 Illustrator CS 5 (15.0.2) and Scriptographer 2.9.070)