Yes, this is a nice gadget, as a quick math and computation device which is portable, I use it a lot for day to day things. a good thing would be : the gadget as an interface to a bigger computer, you say out loud what you are looking for and then the super computer algebra figures out what to put in place and tells you when something is found. with google as a general purpose search engine in the back we are almost there , I can for example ask for a display of the gamma or zeta function out loud and it shows the graphics , a bit like wolfram alpha but we are still not like in star trek when they can ask the computer : compute pi to the last digit or when a certain 'data' ask for anything for a pattern in a signal out loud at the computer. One good thing would be for example, you say 1 2 3 5 8 13 21 34 and ask what is this ? and the interface gets you to the OEIS. ... have a nice evening. Simon Plouffe