Since the IPA contains symbols for all known sounds that can be created by the human mouth and is the default way of writing pronunciation guides I think a very useful thing to have on the language page would be a full IPA chart that you can edit by removing the sounds that are not used in your language.
Once you've edited your IPA chart you could import each symbol into your dictionary. It would be especially good if when importing you could edit the IPA to diacritic marks and other symbols to show the minutia of how a word is pronounced.
That would be great! At least as an addition of using latin letters (for many people don't know how to read IPA).