I think the purpose of this initiative to open for mainstream.
I can tell from long experience with banking software, that dealing with fractions less than 1/100 for money is a challenge to them!
It is however not to deal with billions.
If we do this change to open for mainstream, then let us define XBT as 100 satoshi. This would fit perfectly with existing infrastructure and familiar to people.
USDXBT (again using FX market standard conventions) would be about 20,000 now and declining as XBT strengthens expressing nicely that USD falls.
No, we shouldn't complicate things by defining arbitrary standards. One bitcoin should be one XBT.
Solex, compliments for your efforts! I believe that everything that will make Bitcoin more mainstream will significantly strengthen the project and improve the chance that we will be using it fifty years from now.