All the apps will install.
Motion runs, but can exhibit unexpected behaviour because (AFAIK) the integrated graphics don't support floating-point. I think this, and amount of VRAM, are the main reasons why Motion and other features are unsupported. I have used Motion on my Macbook for a number of little things, including a comp with over 50 layers. The biggest issue is just that you have to render a LOT because the real-time performance is so bad. I haven't really looked at the 3D in Motion 3, so I'm not sure how that's affected, but my guess is it would be.
Color tries to open but will give a dialog on startup that it requires 128MB of VRAM. It claims that you can then run it unsupported, but on my Macbook it just quits anyway.
So far, FCP and Soundtrack run just fine for me, with no problems - YMMV!