WOW. I saw this thread and figured this would be another really slow cube.
This cube starts up really quick and turns very smoothly. Can't really find any negatives about it based on my initial run of this app.
The only thing that i noticed is that it doesn't like my down to up slide..lol
I have to start the cube by sliding from left to right. No biggie though, the important thing is IT WORKS!!
Very easy install by the way, just installed the cube.zip file (already had HTC Home installed).
Now, i'm off to see if this cube can be customized like those in the following thread:
http://forum.xda-developers.com/showthread.php?t=325424
-s