Modification suggestions welcome.
I like the design. Regarding constructive criticism, I'd ask you to look at whether you feel it would be ideal for a payment gateway style icon - while we do want a nice looking, cool logo for us users it's very important to the future of the coin that we make sure it can be easily accepted by the financial world's consumers and businesses.
Have a look at some others - Paypal, HSBC, VISA, Mastercard, Santander - all of their logos are instantly recognisable as being their brand, and their brand only :-)
Thanks for your work so far guys, let's keep this going!