You could run a widget manually running the saved to the Chumby swf file. Just configure a USB dongle with debugchumby running a script to your liking.
A couple of weeks ago I tested out some free "french post card" flash files. Interesting flash files with some nice music. I guess the premise is to mail these out like birthday cards, et al.
I'm remoting various hardware / software functions via the home automation "motherships (2)" now sans SSH custom scripts but rather with Damage's XPL Python script and touchscreen application which always runs in the backround. IE: the "mothership" tells the Chumby's when to dim , shut off screen and basically what to display and when to display whatever. The Chumby"display" mothership is on one box and the "control" & touchscreen application mothership is on another box. I could run both on one box but decided to keep the function kind of separate.
Typically they are running a screen saver; say though an "event" happens that I want to display on the Chumbys; IE: a news alert, storm warning, delivery; the Chumby displays it. Initially I attempted and configured the Linux version of a touchscreen application on the Chumby; it involved installing mono & SDL. I couldn't get my flash stuff to show up though and it was a bit slow with the TTS stuff (and with cartoon sounding TTS); so I switched over to just using it in TSClient RDP (thanks CodeMonkey83) to another mothership in the house and its working just fine.