Filed Pursuant to Rule 424(b)(3) and 424(c)

Registration No. 333-147220

PROSPECTUS SUPPLEMENT DATED JUNE 27, 2008

(To Prospectus dated November 7, 2007)

$1,500,000,000

5.75% Convertible Senior Notes due 2012

This Prospectus Supplement No. 3 (“Prospectus Supplement No. 3”) supplements the prospectus dated November 7, 2007 (the “Prospectus”), and supersedes, in its entirety, Prospectus Supplement No. 2, dated March 28, 2008, relating to the resale by selling security holders of our 5.75% Convertible Senior Notes due 2012 and the common stock issuable upon conversion of the notes.

You should read this Prospectus Supplement No. 3 in conjunction with the Prospectus. This Prospectus Supplement No. 3 is not complete without, and may not be delivered or used except in conjunction with, the Prospectus, including any amendments or supplements to it. This Prospectus Supplement No. 3 is qualified by reference to the Prospectus, except to the extent that the information provided by this Prospectus Supplement No. 3 supersedes information contained in the Prospectus.

Investing in our common stock involves risk. See the section entitled “Risk Factors” beginning on page 5 of the Prospectus.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the accuracy or adequacy of this Prospectus Supplement No. 3 or the Prospectus. Any representation to the contrary is a criminal offence.

The date of this Prospectus Supplement No. 3 is June 27, 2008.

The section entitled “Selling Security Holders” in the Prospectus is superseded in its entirety with the following:

SELLING SECURITY HOLDERS

On August 9, 2007, we issued all of the notes to Lehman Brothers Inc. The initial purchaser then resold the notes to persons reasonably believed by the initial purchaser to be qualified institutional buyers in reliance on Rule 144A of the Securities Act. Based on representations made to us by the selling security holders, we believe that the selling security holders purchased the notes in the ordinary course of business and that at the time of the purchase of the notes, such selling security holders had no agreements or understandings, directly or indirectly with any person to distribute such securities. All of the notes were issued as “restricted securities” under the Securities Act. Selling security holders may from time to time offer and sell pursuant to this prospectus any or all of the notes and shares of common stock issuable upon conversion of the notes.

The following table sets forth information, as of June 26, 2008, with respect to the selling security holders and the principal amounts of notes beneficially owned by each selling security holder that may be offered pursuant to this prospectus. The information is based on information provided by or on behalf of the selling security holders. The selling security holders may offer all, some or none of the notes or the common stock issuable upon conversion of the notes. The selling security holders identified below may have sold, transferred or otherwise disposed of all or a portion of their notes since the date on which they provided the information regarding their notes in transactions exempt from the registration requirements of the Securities Act. The number of shares of common stock owned prior to the offering includes shares of common stock issuable upon conversion of the notes. The percentage of common stock outstanding beneficially owned by each selling security holder is based on 607,168,756 shares of common stock outstanding on June 26, 2008. The number of shares of common stock issuable upon conversion of the notes offered hereby is based on a conversion price of $20.13 per share and a cash payment in lieu of any fractional share.

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To the extent that any of the selling security holders identified above are broker-dealers, they may be deemed to be, under interpretations of the Staff of the Securities and Exchange Commission, “underwriters” within the meaning of the Securities Act. With respect to selling security holders that are affiliates of broker-dealers, they have represented to us that such entities acquired their notes in the ordinary course of business and at the time of the purchase of their notes such selling security holders had no agreements or understandings, directly or indirectly, with any person to distribute those notes.

To the extent that we determine that such entities did not acquire their notes in the ordinary course of business or did have such an agreement or understanding, we will file a post-effective amendment to the registration statement of which this prospectus forms a part to designate such affiliate as an “underwriter” within the meaning of the Securities Act.

Information concerning other selling security holders will be set forth in prospectus supplements or post-effective amendments from time to time, if and as required. Information concerning the security holders may change from time to time and any changed information will be set forth in post-effective amendments or prospectus supplements if and when necessary. In addition, the conversion price, and therefore, the number of shares of common stock issuable upon conversion of the notes, is subject to adjustment under certain circumstances. Accordingly, the number of shares of common stock into which the notes are convertible may increase or decrease.

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