It will be out tomorow I think. It's already done, only music has to be attached.
New features are included and the difficulty is balanced.
There will be no updated version of Sudoku 2007 (it stays at v1.0 forever)!

Version 2.0 Changes:
* new color theme (crystal blue)
* small bug fixes and a few code improvements
* balanced difficulties
* better indication of preset fields
* choice of symmetrical or asymmetrical Sudoku (the asymmetrical is more difficult)
* music player
* no "locked" fields anymore
* no disturbing bonus countdown (just the bar at the bottom)
* improved score system

It is out! Check it!!!