First off, there is no more active player and no more interrupts. It's now a simultaneous-play game.
Everyone looks at the board simultaneously. The first player to see a word writes it down and flips the 30-second timer (Prolix has a 45-second timer). Everyone else has 30 seconds to write down a word.
If your word scores more than the fastest player's word, you get +1 bonus point. If you're the fastest player and your word is equal to or better than 3 other players (in the 4+ player game; that number's lower with 3 or fewer players), you get +2 bonus points. Those bonus points rise throughout the game.
Some other changes...
1) The leftmost column is now 5 points, not 4 points. 2) The Wordsy letter mix is slightly different (and IMHO better). Specifically, H and F are now +1 point, and there's only two of each.