This is a difficult question as the pico projection market is starting to heat up. DLP and LCOS are very well established technologies but LBS is catching up fast. The perfect pico projector has to have the following qualities –
Small form factor (especially for embedded)
Always in focus
Good energy efficiency
If these needs cannot be met by a pico projection technology, then that technology will ultimately fail.
There seems to be only one tech that fits the bill and that is LBS (Laser Beam Steering). So in my view, this is the technology that will drive the pico projector market forward. It seems that some of the major players in the electronics arena would agree with me.