Hi..
Just wanted to show this thingy I've been tweaking some hours. It's just simple 4 function RPN calculator (16 evens). It should be ok, but I've not tested it so well.
dl.dropboxusercontent.com/u/258479999/RPNCalc/index.html
Edit.. For some reason I can't get it to work on IE.. ah well, not a biggie to me, but just to warn out if someone tries to.