Which, from the view of customers, is websites which support their phone, not a phone which websites support. If enough of your customers use WP7 for it to be c

Which, from the view of customers, is websites which support their phone, not a phone which websites support. If enough of your customers use WP7 for it to be cost-effective to support, don't piss them off by not supporting it just to be vindictive, because they'll blame you and it will, indeed, be your fault for not supporting it.