My first iPhone Application is on the iTunes store now. http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=320542867&mt=8 Right Triangle Tutor! I think every question I've raised in a thread, or thread I've started myself, has somehow been related to this application. Thank you all for answering my questions along the way. It has actually been on the store for a while now, but I didn't really think about saying thanks until this thread. http://forums.macrumors.com/showthread.php?t=750772 Sorry its a paid app. A Lite version has yet to be approved by big brother Apple.