Whenever I hear a programmer say "80% done" I think of the contractor's version: "two weeks", from the old '80s movie Money Pit:

https://www.youtube.com/watch?v=70xGgWIw5tU

The joke at my old work was 'basically done'. Meaning they spent a weekend equivalent on a prototype. Management heard 'done' the rest of us heard 'not production ready'.

Here is, 'done, just needs testing'.

Great, that means you only have 80% left to do!

well generally I think however long the first 80% takes, the last 20% will take 1-2 times that.. but cool that they're working on an android version, I'm patient and can wait. Loving brain.fm it actually works to keep me focused.