>1. Development Machines: I know you can have VFP 6.0 and VFP 7.0 on the same development machine, but can you have different versions of VFP 7.0 on the same development machine?

There's only one version of VFP 7 right now.

>2. End User Machine: can you run different versions of VFP 7.0 on the same machine? That is, can you install runtimes for different versions of VFP 7.0 on the same machine?

Yes, you can if you put VFP runtimes into application directory

>3. VFP 7.0 Versions: is it known when the SP will come out for VFP 7.0?

See Message #577323.