As of 8/3/2011 2:55 PM, I have 86634 subscribers. First subscriber was added on 3/10/2011 10:14 AM (146 days ago).
This means on an average, I have added over 593 subscribers each day. Of course it was lesser number in the beginning, but lately I have been adding about 1000+ a day.
...and all of this without spending a single dollar in marketing.
So, stop building websites to create your list. Write android apps.