48 hours without computers. Whew. Now on train to Helsinki, posting this on a break from Gzz. Line breaking now works reasonably well for the demo case. Animation IS sorely needed though, because rebreaking the lines makes the text jump when just moving the cursor. Not good.
Gzz now has an XOR cursor - another little thing to help you click the right place quick enough. Animation for text (though there is the problem of dragging with the mouse: probably UpdateManager should know whether there's a mouse drag going on) and REAL cut&paste will be next. That will be exciting: finally a REAL writing tool. Or the beginnings of one.