Latin alphabet but with some accents, and the eth/thorn/yogh/wynn/ash (ð/þ/Ȝ/ƿ/æ) characters that English used to have, and Icelandic still has some of.

[1] http://www.csun.edu/~sk36711/WWW/KAG/ch2.html

I'm sure everyone will start using it because I want them to ;-)