Current

Long-term

2012

2011

2012

2011

March 2010 Notes - principal

$

-

$

4,071,000

$

-

$

-

2011 Unit Offering Notes - principal

-

-

-

1,625,000

April 2011 Note - principal

-

-

2,000,000

2,000,000

Total convertible notes payable - principal

-

4,071,000

2,000,000

3,625,000

March 2010 Notes - unamortized discount

-

(117,405

)

-

-

2011 Unit Offering Notes - unamortized discount

-

-

-

(316,610

)

April 2011 Note - unamortized discount

-

-

-

-

Total unamortized discount

-

(117,405

)

-

(316,610

)

March 2010 Notes - net

-

3,953,595

-

-

2011 Unit Offering Notes - net

-

-

-

1,308,390

April 2011 Note - net

-

-

2,000,000

2,000,000

Total convertible notes payable - net

$

-

$

3,953,595

$

2,000,000

$

3,308,390