I've install My Moodle on an ipod touch.
It seems to work fine, except when trying to access courses or participants.
When either of these are selected there's a pop-up error that reads :
"XMLRPC Parser Error".
I've no idea if this is useful, but when I got the URL accessed from the logs, putting this into the browser I get :
<?xml version="1.0" encoding="UTF-8"?>
<methodResponse><fault><value><struct><member><name>faultCode</name><value><int>630</int></value></member><member><name>faultString</name><value><string>Unable to read request</string></value></member></struct></value></fault></methodResponse>
NB. I'm using moodle 2.2 (Build: 20111205) - which is not an option in the drop down below.