A good example of this is Avid's new Hardware Compatibility Feedback.
These are non-certified systems that dealers and end-users have reported back to Avid are working without any problems. While some users are reporting good success with these systems, many more are having problems.
It is a software based solution, so there is no need for a real-time capture card or the complexity and problems they can create. There is, however, an excellent Product demo CD that you can request from Avid.Unlike a desktop, laptops are loaded with proprietary technology.