There's some differences between PD and PDa, as PDa was made specifically for portable devices, so some PD patches may need to be modified, or might not work at all.

Of the PD patches I've tried, they all at least loaded and displayed, but I don't think any of them actually played any sound
PDa patches worked great, I had some fun with this one:
http://gige.xdv.org/pda/examples/ACID_800x600.php

I might try compiling full PD at some point, if it works out I'll post it somewhere.