I forgot to mention that the previous entry was written on my new Treo 650. Typing on its small keyboard takes a little getting used to.
I typed the previous post using the standard Movable Type interface in the Blazer web browser. That is not the best idea since the MT interface is not good for the small PDA screen. I also ran into a character limit (2000?) in the text box for entry body in Blazer.
Postscript: Publishing an entry in Blazer works but the pings are not sent because of the way page refresh is used by MT.