Version 0.58 addresses the 'white screen' bug that would sometimes pop up and then you'd be unable to run the program.
I've downloaded, installed and ran the program with no problems now - after personally experiencing the white screen with the Palm OS version on my Centro.
In corresponding with lead programmer Anatoly Terebilov I've been told that "The project is freeware so far. We are planning to add a lot of new features and fixes. And all is free." I sure hope it stays free!
I'm staying in touch with Anatoly and will keep you informed!
Want to give v.0.58 a look?
Download it here for free.