BEAT HeartBeam Inc

Estimated net proceeds to CardioNet

Approximately $49.8 million, after deducting estimated underwriting discounts and commissions and estimated offering expenses.

Common stock to be outstanding after this
offering:

22,564,607 shares as of December 31, 2007 (shares of common stock outstanding would be 22,954,291 and 22,213,907 assuming an initial public offering price of $18.00 and $20.00 per share, respectively).

Summary Consolidated Balance Sheet
Data (in thousands):

As of December 31, 2007, on a pro forma as adjusted basis: cash and cash equivalents were $69,885, working capital was $81,169, total assets were $152,850, total debt was $2,744, mandatorily redeemable convertible preferred stock was $0 and total shareholders’ equity (deficit) was $138,247.

Risk Factors:

Principally because of the reduction in the selling stockholder participation in this offering, the number of shares of common stock that will have registration rights after this offering has increased.

The decrease in assumed offering price results in more shares of common stock issuable upon conversion of our mandatorily redeemable convertible preferred stock and therefore more shares with registration rights after this offering.

Capitalization (in thousands, except share data):

Based on the conversion of all our outstanding shares of preferred stock into 16,026,820 shares of common stock upon completion of this offering, the automatic cashless exercise of warrants upon the completion of this offering pursuant to the terms thereof, resulting in the issuance of 304,468 shares of our

common stock, and the sale of 3,000,000 shares of common stock by us in this offering, as of December 31, 2007:

on a Pro Forma basis, shares of common stock outstanding were 19,564,607, common stock was $19,565, additional paid-in capital was $150,592, total shareholders’ equity (deficit) was $88,437 and total capitalization was $91,181;

and on a Pro Forma As Adjusted basis, shares of common stock outstanding were 22,564,607, common stock was $22,565, additional paid-in capital was $197,402, total shareholders’ equity (deficit) was $138,247 and total capitalization was $140,991.

Dilution:

After giving effect to the conversion of all outstanding shares of preferred stock into common stock and the automatic cashless exercise of warrants, our pro forma net tangible book value per share as of December 31, 2007 was approximately $2.27 per share.

After giving effect to the sale of common stock offered by us in this offering, after deducting estimated underwriting discounts and commissions and estimated public offering expenses payable by us, our pro forma as adjusted net tangible book value as of December 31, 2007 was approximately $4.18 per share of common stock. This represents an immediate increase in pro forma net tangible book value of $1.91 to existing stockholders and an immediate dilution of $14.82 per share to investors participating in this offering.

Management’s Discussion and Analysis of
Financial Condition and Results of
Operation:

Based on an assumed initial public offering price of $19 per share, the intrinsic value of the options outstanding as of December 31, 2007 was $20.7 million, of which $15.8 million related to vested options and $4.9 million related to unvested options.

Related Party Transactions

From January 1, 2004 to December 31, 2007, we granted options to purchase an aggregate of 892,500 shares of common stock to our current directors and executive officers, with exercise prices ranging from $1.50 to $9.50.

Principal Stockholders and Selling Stockholder:

The following table sets forth information regarding beneficial ownership by each person, or group of affiliated persons, known by us to beneficially own more than 5% of our common stock, each of our directors, each of our named executive officers, all of our directors and executive officers as a group, and each selling stockholder. The percentage ownership information shown in the table is based upon (1) 3,233,319 shares of common stock outstanding as of December 31, 2007, including 103,292 unvested shares held by employees, (2) the conversion of all outstanding shares of our preferred stock into 16,026,820 shares of common stock, (3) the automatic cashless exercise of warrants and (4) the issuance by us of 3,000,000 shares of common stock in this offering. The percentage ownership information assumes no exercise of the underwriters’ over-allotment option. Guidant has granted the underwriters an over-allotment option. If the underwriters exercise their over-allotment option in full, Guidant will beneficially own 1,382,114 shares, or 6.1% of our outstanding shares following this offering.