Sounds good. Who pays the fees?
that is something that came to my mind too. but more concerning who pays once the service is fully released.
as the community is stil small.. telling a merchant he would have to talk to his staff about bitcoin so they know what to do.
or change his EPOS-cashiers till system slightly if using the non bitinstant service. i find it then unfair to mention if they sell $10 of product. that they would only receive $9.50 or less. due to card issuer fee's bitinstant conversion fee's and commission
i think its best that merchants get exact retail prices given to them. and bitcoins being higher then mtgox prices to cover the costs.
ofcourse later on when bitcoin is more widespread then the, who pays the fee's can be re-evaluated once bitcoin becomes more popular.
secondly it would add value to bitcoin and as we are burdened with the fee's it would help to increase bitcoin prices to compensate.