I posted updates to my unofficial versions of kMoria and iRogue for PalmOS this morning. Both new versions fix a defect where an active menu would be exited and partially overdrawn by map updates when a mapped hardware button would be pressed. My unofficial versions add Treo 600 5-way Nav button support to both iRogue and kMoria, and adds graphical tileset support to kMoria. These versions also fix some defects in both iRogue and kMoria. See my Palm project page for the updates to:
kMoria 0.15 Tiles+Nav 2 (unofficial)
iRogue 1.1.1 Nav 2 (unofficial)