Orthodox Version features:
1- "Hashem" is used to refer to G-d.
2- Adon Olam appears before Birkot HaShachar
3- Birkot HaShachar are the traditional brachot found in any Orthodox Siddur.
4- There is only 1 Amidah opener (No Imahot page).
5- At the end of the Amidah, there is space to insert a verse corresponding to one's name from TaNaKh.
6- There is space to prepare letters to the Kotel.
7- There is space for personal prayer for Medinat Yisrael.