Since Windows 7 isn't even due for release until next year, it's a bit early to say. However, I would think that Pro, as the "top of the line" would be supported. The question is whether Standard (7) will be as well. Versions prior to 7 are not officially supported under Vista.
If they did any with Vista it was internal so I don't know. It really shouldn't have any problems, though. Most things work with the next level up fairly easily. It's going backwards and jumping several levels where things tend to get a bit shaky.