I've been saving up for a version of one of those that has a keyboard at the back, so you can input messages "on the fly" (instead of via pc) for a looooooooooooong time now.
They've been around a good while.
For me, I would much rather use something that can be changed by me (without a PC) set to set during the night with jokes or personalised messages for the audience, not something pre-programmed.
Still, MUCH more portable than the one I want......
[This message has been edited by hellboy44 (edited 10-09-2007).]