Ok, but needs a few tweaks....
A useful app with a few minor drawbacks: 1) Double tapping to another app (to paste results into Numbers for example) and you lose all your work when returning to iBeams as it defaults back to a blank entry calc. 2) There is no way to export your results, a email out would be great. 3) The ability to enter E values of other materials wood (gettit?) be handy too. Otherwise a handy, quick to use app. And free too, so one cant grumble too much!