Same. Love calculators and used to flirt with the idea of buying an old HP graphing but the app scratches that itch. Once you learn RPN it just feels so natural.
Have always felt conflicted about these policies. Real life works this way but somehow seeing people escorted to the front of the line violates the rules of having a line.
The article doesn't mention it but there was also Newton Script. Was a language for the Newton that looked like javascript with sharable top-level PDA objects for contacts, notes, handwriting, etc.