.mobi is a domain. They have rules that require mobile-friendly web sites on there. The whole concept was from the days when a WAP browser that gave you a fake version of the web was all you expected on your Nokia. Ipad 3 users don't need a mobile version of the web, unless your original site design sucks (like this forum...).
Yet 1990's HTML still works fine on every device:
http://www.ma.hw.ac.uk/~chris/MR/class_intro.htmlhttp://www.mcli.dist.maricopa.edu/tut/tut23_ex/index.htmlNotable old skool, you use a better "HTML" editor posting a message on this forum than most of those 1995 programs reviewed here:
http://www.users.csbsju.edu/~eknuth/obcomp/htmled16.html