It seems like I did release beta 4 too soon. Shortly after the release I received a bugreport that it isn't possible to test the speechoutput from the editwindow anymore. That is just a minor thing and was easily corrected.
However, what bugs me more is that the plugin support wasn't by far what it was supposed to be. I was still developing the first plugins when I released beta 4, and I thought I had it all figured out. I was wrong. The first plugins are ready now and everything seems to work fine now. But I had to make some adjustments in the pVoice code itself, so I'll have to release another beta before people can start using those plugins.
I'll certainly take more time now to test it all and make sure it all works as it should...