Twitter integration with Serendipity weblog

I just completed the integration of Twitter with my Serendipity-based weblog:

• My tweets are displayed on my weblog using the Twitter Timeline (serendipity_plugin_twitter) plugin.
  You can add this plugin through the Serendipity Admin interface: Configure Plugins, Sidebar Plugins. It only needs your Twitter name, not your password.
• My weblog postings are automatically tweeted using the Microblogging (serendipity_event_twitter) plugin.
  You can add this plugin through the Serendipity Admin interface: Configure Plugins, Event Plugins. This one needs your Twitter name and password as it needs to send out new tweets.

When creating a new weblog entry, there is a new Advanced Option called “Microblogging” at the bottom of the page that allows you to choose if this entry should be announced on Twitter.

My next challenge: finding an iPhone XML-RPC client that works with Serendipity. I tried the WordPress app, but it does not support the XML-RPC used by Serendipity.