Hmm.... the new look and feel changed the submit buttons (in the HTML) from type INPUT to BUTTON, which as it turns out isn't supported by Windows Mobile 5.0 - terrific! :-(
See
http://msdn2.microsoft.com/en-us/library/bb545543.aspx for more details.
Anyway, let me have a look and see how we can work around this for our Windows Mobile 5.0 users.
In the meantime, please let me know how mobile.voxalot.com goes for you. It should still work just fine.
--
craig