Normally I love public betas and early code. Many eyes bring much information and even bug patches, adding to public knowledge. Mr.S_L is completely right; outside open-source, it only whips up a furor about how nothing works and good people suck. I believe Project64 2.0 released today, by odd coincidence in my ~6 month absence.
I'm impressed MarathonMan is still making progress on the cycle-accuracy problem, which technically is witchcraft. I'm improving nothing, but MM is, so he is awesome. I haven't checked in yet on 1964 or Mupen.
I was thinking about emulation metaphors, since I still have trouble understanding. Instead of the N64 as a math-processing computer, imagine an N64 food-processor. By watching some ingredients go into that official N64 and the food coming out, you can design a food-processor that makes the same food product. By matching the most common ingredient results, and tweaking whenever recipes come out terribly wrong, you rapidly get the same food in a general way (a high level). Still, the non-official food is sometimes too mushy or crunchy or tastes like crap, needing tweaks for every available recipe. A cycle-accurate food processor methodically replicates every part of the official N64 food processor, matching every spin of every type of blade for exactly as long. That should end up with exactly the same food product as the official one, but is incredibly difficult to coordinate quickly with the different blades in the non-official processor, and even to know those details about the original. Rarely, ingredients (say, lettuice) may chemically react with the cold steel of the old blade (and wilt), where the non-official new blade won't, so you'd need to duplicate things on a molecular level, like an integrated circuit emulator (eg. DICE) emulatting every part of the circuit, maybe even tracking electricity -- practically impossible with today's artificial food processors, but few people are passionate about wilted lettuice accuracy. If someone can't program but can't cook either, I'm sorry, but I tried ;-)
Anyway, everyone is talking N64 Android. I tried MAME on Android. Portable MAME is a dream of mine come true: Waiting in line, so lets have a little NeoGeo....Beautiful, but I'd want the N64 running mostly-accurately full-speed on a general-purpose personal computer first, yet android interest might spur that on.