If your Symbol MC-50 runs Pocket PC 2003 this solution will not work, but any
device running Windows Mobile 5 or later can use the third-party solution
from Formotus. Formotus client software runs on the device and lets you use
forms built in InfoPath.
Formotus is not free like the browser solution, but it supports more
InfoPath controls, it allows offline work with multiple saved drafts of a
form, and it supports important mobile technologies like GPS, bar codes, and
ink capture.
Check it out at:
http://formotus.com/
Comparison chart of supported InfoPath controls is here:
http://formotus.com/infopath-in-browser.html