FWIW I tried explaining bitcoins to a bank manager in Malaysia yesterday. All was going well until I told her what the current price was and you could tell she had lost interest. If BTC/XBT hits $1K then human psychology is going to kick in as a barrier to acceptance for the average Joe and Jane. It probably would have been better if the value of satoshis and BTC were reversed, then we could talk in MBTC, GBTC like disk space.  I think this is an urgent issue and one of the most pressing for the (healthy) future of bitcoins. If a new and sensible naming convention can be decided upon, it will be a very positive step.