Using Google checkout reduced my conversion rates but I still stuck to them cause they Paid on time and are very much less troublesome than paypal (especially for high volume merchants)
I'm definitely switching to stripe when it comes to the UK.
Is this for e-commerce? I just suspected you guys didn't seriously consider e-commerce since you don't do pre-auth and settlement. It being illegal to charge the customer before shipping in some countries and such.
Sorry you haven't gotten one yet! I just sent an invite your way.