1) Do you have a mailing list to let me know when you do support Gmail? 2) I notice you've chosen 7 days as the length of the free trial. Why that rather than

1) Do you have a mailing list to let me know when you do support Gmail? 2) I notice you've chosen 7 days as the length of the free trial. Why that rather than the 21ish days it takes to form a habit? 3) For your annual subscription plan, how do you avoid the user's credit card being expired by the 4th time you try to charge it?