Ah, so looks it really matters where you buy your M92 from..
If I want the nice IVONA TTS voices, then I need to get it from onyx-boox.com website: https://www.mobileread.com/forums/sho...d.php?t=180557
But then I can't update it myself with newer firmware (need to wait for reseller, if they even offer?).
Whereas no IVONA TTS from Booxtor (ereader-store.de), but allows you to update yourself. And also mentions here that he has a R&D/Dev team too (so faster updates with latest firmware?): https://www.mobileread.com/forums/sho...d.php?t=180382
Looks like it pays to read up first