if you're talking about iphone users downloading roms i don't think they're smart enough to use vimm's lair (speaking as an iphone user and and emulation enjoyer)
^ there's an announcement on their site, they had to throttle the speeds down real low because someone who used delta recommended the site (which is cool but now I can't get my precious sam and max season 1 :/)
it's gonna be 11:30 when I get it dawg