Higher frequency = smaller transformers, but it would have to be much higher to make a significant difference (think of switch-mode power supplies), and then there'd be a whole load more problems.
50 or 60 Hz is probably about right. Or am I just being trapped by years of accepting this as the norm?
I'd like to see American/Continental type dedicated circuits for all major appliances, and I wouldn't use the British ring circuit. Too many complications.
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P.S. Have you ever seen the German "Schuko" plug?

[This message has been edited by pauluk (edited 10-03-2001).]