An announcement by Sprint crushes Googles hopes of the Nexus one reaching a US based CDMA carrier. Sprint has noted that they will not carry the Nexus One. No doubt this is due to the Evo's anticipated release. The device would be vastly over-shadowed in Sprints line-up of devices after the Evo releases. Having such a high profile device that's performance would certainly be lack-luster would be an ignorant move on Sprint's part.
Verizon Wireless has already announced they will not be supporting the Nexus one, and that the Incredible would be taking its place.