Jaime Griesemer, a.k.a. Case, has written an entry for PlanetXBox's hosted HALO Developer Diary. So what's it all about? Check it out:

In the first of several installments of the Halo Developer Diary, Bungie level designer Jaime Griesemer delves into the changes that have occured in Halo. Some have questioned the motives of Bungie Studios and Microsoft moving the game to the Xbox platform while putting other versions of the game on the back burner. Why the changes? Jamie explains...

The first entry communicates how HALO began and how it has developed to be played over the XBox even though it was originally intended as a computer game. Keep an eye out for further entries.