In 40 or so years when nobody can obtain a working SNES, and someone wants to look back and understand how the SNES hardware worked, they won't be looking at ZSNES' source code for that purpose. (hopefully we will have transistor layouts ala Visual6502, but you never know ...)
bsnes aims to emulate the hardware as closely as possible, with a side effect that it runs every game as a result. Other emulators aim to play the games, with the side effects of bugs in the least popular titles which nobody notices.
For today's hardware, Snes9X is the best choice for just playing games. But in ten years when cell phones can run bsnes at full speed, and you have to emulate an x86-32 to run ZSNES anyway, why not use something more reliable and guaranteed? GUIs are just frippery, easy to replicate or improve upon separate from emulation.
Athough Mike Judge's projects haven't always been a commercial success, everything he's been involved in has been damn entertaining. I'm really excited to see how this turns out.
I think this comes down to personal preference. I am on a 24 inch screen with 1080 lines and I still prefer reading text in OS X to Windows on it. On my shabby laptop, not so much.
WarGames, however inaccurate, changed my view on computers when I saw it circa 1994 when I was 9 years old. The device I used to type up papers and find nudity transformed into something I could manipulate and customize without ever leaving the desk it sat upon.
Ok, sorry, I have to admit I knew it was still up. Claiming it was taken down is a classic tactic for getting people to click through. You've been RickRoll'd. (I'm not proud of it.)
Speaking of influential, check out the extensive Wikipedia page on the meme. The RickRoll has showed up in the Macy's Thanksgiving parade (with Rick Astley in person), a video from Nancy Pelosi, and a tweet from the White House Twitter feed. It is fully part of the pop culture.