X50v owners who are fans of sokoban might be interested to know that I have updated my port of Warehouse Guy CE (which was originally a port of KSokoban for KDE) to support VGA natively (no hacks needed).
I can't take the credit for the program since I basically only changed a few lines of code and recompiled it, but I have to say it's the best sokoban clone I know of for Pocket PC (scaling graphics, external level file support, etc).
I've made my port (and source) available on my website at
http://www.rudism.com.