Works on myz30. Thanks for the effort developer! I must say I appreciate it as the browser gvoice is not great and Google blocked the side loaded app a few months ago (and I'm too lazy to do the hard work around posted in the forums).
That being said the UI looks like it's out of the 90s and it's not super intuitive. The sms conversations have no breaks. I wish it used cascades, take a peak at iGrann for a great native bb10 app (or cb10) for that matter.
Either way props to the dev. Hopefully they can improve and make the client great! I love using "one number" with Google voice so I don't have to tell everyone when I switch numbers, just my closest friends who have my actual mobile number.