Good Idea
Tom..... When I first bought a portable piano (1980) it weighed around 400 pounds. Carried that puppy on the road with a band for 9 months. Then I found one (1991) that had more buzzers and whistles and only weighed 200 pounds. Carried that one around town for 12 years. Now I've got one (2001) that does even more at 63 pounds. One more technological advancement and it might be possible to slide it in between the radio and the GPS.
I saw a keyboard at Sharper Image that you roll out onto a table and play the darn thing. What's next?
FYI......... Yamaha, Steinway are decent but Bösendorfer is still the KING!