I've been messing around with TheZZAZZGlitch (GlitchCity forums) use of the 8F item. One of them is catching/obtaining any Pokemon you want.
With that I got all 151 Pokemon in 25 minutes. What you can do with it is ridiculous.
Also azzaroxxx6661's max DV glitch video attracted attention, but it only works for Red and Blue, so some are asking to give a video demonstration for Yellow.
The 8F thread on GlitchCity does have the necessary information to do the glitch on Yellow, but so far nobody has made a video. Hope somebody will make one soon.
I plan to, but will probably take me quite a while to get the hang of it.
EDIT: Nope scratch that, through the GlitchCity 8F thread, I found a way to make it work on Yellow! Tested it on an emulator and got a perfect Mew. Let's see how it fares with the 3DS VC. Will make a new video soon