The Beatbox is a physical programmable drum machine and consists of 5 tappers. Each tapper allows the user to play a rhythm, and then it can re-play the rhythm until it is stopped, or a new rhythm is played. The tappers can then be placed on different materials and objects to create a custom drum kit.
Drum Buddy is a rhythm machine created by New Orleans based drummer Mr Quintronics using photo-electric resistors. A limited number were built at the end of 1999 and are as such very rare! There are sound samples on the site you should check out
The only difference with the DRUM BUDDY is that the rules are all new and not based on any preordained music system, but on color coded switches, pipes, knobs, and your own sense of rhythm – not a single number, letter or word to restrict your playing.
Since posting this on the forum there is now a cool Drum Buddy demo on youtube, after new Drum Buddy instruments were made in 2007.