Use MacBook Pro as second monitor for iMac?
Solution 1:
You can not use your MacBook Pro as a second monitor for your iMac without additional software.
ScreenRecycler claims to allow you to expand your desktop across multiple computers.
As an alternative approach, Synergy (previously open source at synergy-foss.org) claims to lets you combine multiple computers into one. It will let you use both computers from a single keyboard and mouse.
