Interest is earned once a month on the balance in your savings account.
A donation link has been added next to the banking link under your Checking account balance on each page. You can use the Donate feature to send credits to another user. Just type in the name of the person you're giving it to, add a comment, and then the amount you want to send, then click donate.
Also: I've removed the 1-day waiting period on deposits and withdrawals. You can now move credits in and out of your savings account immediately.
I have also removed the transaction fees for transactions.