i think more and more people are using handheld devices as the display.
No doubt about that but like you said one time, with the BDP you wanted something that operated essentially like a CD player. The concept appealed to me as I felt it offered something no other type of device offered at the time. Everything today uses a touch-screen of some sort, even electronic musical instruments such as synthesizers, but what manufacturers often forget is that not all who use them have perfect vision. With so much information that has to fit on the screen, the fonts can get very small and thus difficult or impossible for someone to read. Since these types of devices typically depend on deep menu systems rather than hands-on controls, using them is difficult. For this reason I strongly prefer devices that are simple to use and have an intuitive set of controls with a display on-board.
The creators of the Fairlight CMI (Computer Musical Instruments) upon selling their first machine to none other than Stevie Wonder said that if an instrument cannot be used by a blind musician, then it is really not suitable for any musician.
Still, later they developed an iPad app!!!