From latest 424(B)5 filing: 164,291,631 shares
Post# of 148187
164,291,631 shares of common stock that may be issued upon the exercise of outstanding warrants, with a weighted average exercise price of $0.64 per share, (v) 23,158,174 shares of common stock that may be issued upon the exercise of outstanding options, with a weighted average exercise price of $0.64 per share.
....so $105M worth of warrants and $14.8M worth of stock options.