Codename Revolution learned that a Wii version of the upcoming CSI: Hard Evidence is in the works for a September release. Whether the port is the work of Telltale or a Ubisoft studio is unclear since Ubisoft was responsible for the PS2 3 Dimensions of Murder, but as we all know Telltale recently hired a Wii guy (or gal).
As for the original PC version, there's still no hard evidence (hur hur) on a release date. The latest I've heard was a May or June release, though it could very well be coming out in September as well.
Source: Codename Revolution