Good day to all. I was in the market for a new cell-phone and was waffling between=20 Blackberry Z10 / Q10 and one of the new Android devices. I finally=20 settled on Android and picked up a shiny, new Galaxy S4. Now I'm in the middle of a massive learning curve - my previous phone=20 was a very dumb 'Smart' phone (Samsung Impact) and I didn't bother=20 learning to use any of its very limited 'Smart Phone' feature=20 set. The phone was just too painful to use for anything other than a=20 plain old voice phone. My earlier phones were even more simple -=20 simple CDMA voice-only flip-phones (which I *Still* sometimes prefer). The new Galaxy S4, on the other hand, is a real beauty. Great=20 screen, reasonably powerful, semi-decent battery life (I figure that=20 I might actually get two days of use between battery charges, should=20 I forget to plug it in one evening). I've downloaded a few apps - Swiftkey adds a few features to the=20 already-included Swiftkey "continuous" text-entry keyboard that comes=20 standard with the S4; Elektor's Android RF app, a few others. But what's missing is a decent RPN calculator. The Google Play store=20 shows *many* RPN apps available - too many to install and try each=20 one to see what's best. So I come yet again to ask of the collected knowledge of the PIClist:=20 Which RPN calculator for Android do people like? On a related note - I'm still looking for decent text and/or video=20 tutorials on how to learn the Android basics as well as tutorials=20 specific to the S3 / S4 phones. I've found a few but, mostly, they=20 either show the most basic, obvious stuff or they assume that one=20 already has a good working knowledge of Android basics. And, yes - I=20 *am* reading the 200 page official manual. Many thanks! dwayne --=20 Dwayne Reid Trinity Electronics Systems Ltd Edmonton, AB, CANADA (780) 489-3199 voice (780) 487-6397 fax www.trinity-electronics.com Custom Electronics Design and Manufacturing --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .