Not too sure how donations will boost PJ64 development, but that's what Zilmar recent post implies. You may read his update here
Someone should tell him that WHDload patchers do it for free !
To sum-up :
- 1964 paved the way for its successor
- Accurate N64 emulation is somehow hardware dependent
- V1.7 PJ is overdue, with or without additional donations (although I don't care much)