The HP-48G/GX was also my calculator of choice and I really disliked the later HP49. However, I then tried the HP50G, and was instantly hooked. Once you get ove

The HP-48G/GX was also my calculator of choice and I really disliked the later HP49. However, I then tried the HP50G, and was instantly hooked. Once you get over the differences in key layout, it's like a HP-48GX loaded with tons of useful software, in a slightly better form factor. I now have a HP50G and a HP-48G, but I never use the older model. On iOS, I use the Emu50G app, which works, but could really use some improvements and optimizations. It's a fork of emu48. Incidentally, I think the HP-50G is the last good engineering calculator. I'm puzzled as to how people get around without one these days: don't tell me about python, scipy and other similar shells: there is nothing else out there that can do so much, so efficiently.