That could be...I haven't really read up on it. I always confuse it with the pneumatically-actuated valves on the old BMW V12 in the McLaren F1.
Cam switching is in effect having 2 or more cam profiles. Change the cam and you change lift, duration and timing. Cam phasing just changes the timing of a fixed cam profile.
On the MIVEC, it's actually a "quasi" 3-stage. There are only 2 stages on each cam, but rather than switch both cams at the same time like VTEC, it switches the intake and exhaust cams separately. I don't know much about the cars the motor came in although I believe the MIVEC-MD motor was only a 1.6 liters and there was also a V6 of some sort in the FTO which had MIVEC.