I don't know, but it looks to me like the character (icon) codes are ok, but a different font is being used. I thought that the font was included with the APK if it is used in a source file, so perhaps the packager doesn't know that you're using it. Are you constructing the icon labels in code, perhaps using Chr() ? Maybe add a label that uses the font to one of your layouts, but position it off screen or disable it; that might be enough to get the font included in the APK.
As soon as a better answer is posted, go with that, I won't be offended - just throwing ideas into the mix until the rest of the world wakes up ;-)