Science
Alarm Clock Pro
Koingo Software, Inc.(Paid)Satscape
Satscape(Free)Alarm Pro
smartieAnts Inc.(Paid)Stellarium
Stellarium(Free)Recess
Nguyen Huu Nghia(Free)Aquarium live lite: Relaxing screensaver & Clock
Voros Innovation Business Services Pty Ltd(Free)4Peaks
Mekentosj(Free)WMF Viewer
Cristallight(Trial version)R-Project
R-project(Free)TuxMath
Tux4Kids(Free)