|                                                                      |   |        Successor         |    |              | Predecessor |              |
|---------------------------------------------------------------------------|--------|-------------------------------|---------|-------------------|-------------|-------------------|
|                                                                      |   |        Year              |    | Year              |        | Year              |   | Year |   | Eight      Months |   |   | Four      Months |   |
|                                                                      |   |        Ended             |    | Ended             |        | Ended             |   | Ended |   | Ended |   |   | Ended |   |
|                                                                      |   |        December 31, |    | December 31, |        | December      31, |   | December      31, |   | December      31, |   |   | April      30, |   |
|                                                                      |   |        2008              |    | 2007              |        | 2006              |   | 2005 |   | 2004 |   |   | 2004 |   |
| Earnings:                                                                 |   |                          |    |              |        |              |   |   |   |   |   |   |   |   |   |
| Income      (loss) before income taxes                                    |   | $                             | (96,266 | )                 | $           | (71,859           | ) | $ | (53,320 | ) | $ | (26,621 | ) | $ | 2,767 |   |   | $ | 107,989 |   |
| Fixed      Charges                                                        |   |                          | 22,034  |              |        | 22,757            |   |   | 17,751 |   |   | 13,316 |   |   | 5,918 |   |   |   | 678 |   |
| Total      Earnings                                                       |   |                          | (74,322 | )                 |        | (49,102           | ) |   | (35,569 | ) |   | (13,305 | ) |   | 8,685 |   |   |   | 108,667 |   |
| Fixed      Charges:                                                       |   |                          |    |              |        |              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Interest      expense, including amortization of debt      issue costs    |   |                          | 17,746  |              |        | 19,764            |   |   | 16,782 |   |   | 12,892 |   |   | 5,733 |   |   |   | 567 |   |
| Estimated      interest factor of rental expense                          |   |                          | 4,288   |              |        | 2,993             |   |   | 969 |   |   | 424 |   |   | 185 |   |   |   | 111 |   |
| Total      fixed charges                                                  |   |                          | 22,034  |              |        | 22,757            |   |   | 17,751 |   |   | 13,316 |   |   | 5,918 |   |   |   | 678 |   |
|                                                                      |   |                          |    |              |        |              |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Ratio      of earnings to fixed charges and preferred      dividends      |   |                          | — |              |        | —           |   |   | — |   |   | — |   |   | 1.5 |   |   |   | 160.3 |   |
| Deficiency      of earnings to fixed charges and      preferred dividends |   | $                             | 96,266  |              | $           | 71,859            |   | $ | 53,320 |   | $ | 26,621 |   |   | — |   |   |   | — |   |