Hey all,
We put out some Pd/Android test builds today, it runs on anywhere from Android 1.6 to 2.2. Try it on your device:
http://gitorious.org/pdlib/pages/Packages
Or if you want to start digging into the libpd implementated used in Pd/Android, then here is some documentation:
http://gitorious.org/pdlib/pages/Libpd
.hc