Just saw it in the Anime and Manga Union (join this union people), Tokyopop ia gonna publish it this year, in the website there is a sample (I don't know if it is the whole vol 1 or just one chapter)

http://www.tokyopop.com/devilmaycry/

Well, I read some pages and it doesen't follow the game storyline, which I don't know if it's good or bad. Kinda bizarre seeing Dante with an Italian friend that looks Mario called "Enzo", really bizarre....

Anyways, just check it out, the art is really nice.