I know I can use the same AC adaptor block for T23 and T43, but does this extend to all ThinkPads? And - this is my real query, though it is somewhat OT - can I use a ThinkPad adaptor with other computers (I'm thinking of a tiny VIA EPIA), assuming of course the voltage is correct? Or does the ThinkPad adaptor "talk" to the computer in a way other computers will not understand?