If you updated to a future ipdf, please make absolutely sure
not to revert to the original ipdf(2.7.1).
But we have /usr/bin/md5sum on the device, so it should be not difficult to educate the script to have a list of md5-checksums of the known bionic ipdf applications and to check whether the installed ipdf is still a bionic one ore somethin else.
(Again: I'm tired and may be completely wrong
