Metro PCS 2007 Annual Report Download - page 101

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F-2
REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Board of Directors and Stockholders of
MetroPCS Communications, Inc.
Richardson, Texas
We have audited the internal control over financial reporting of MetroPCS Communications, Inc. and subsidiaries
(the "Company") as of December 31, 2007, based on criteria established in Internal Control — Integrated
Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission. The Company's
management is responsible for maintaining effective internal control over financial reporting and for its assessment
of the effectiveness of internal control over financial reporting, included in the accompanying Management’ s Report
on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company's internal
control over financial reporting based on our audit.
We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board
(United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about
whether effective internal control over financial reporting was maintained in all material respects. Our audit
included obtaining an understanding of internal control over financial reporting, assessing the risk that a material
weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the
assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe
that our audit provides a reasonable basis for our opinion.
A company's internal control over financial reporting is a process designed by, or under the supervision of, the
company's principal executive and principal financial officers, or persons performing similar functions, and effected
by the company's board of directors, management, and other personnel to provide reasonable assurance regarding
the reliability of financial reporting and the preparation of financial statements for external purposes in accordance
with generally accepted accounting principles. A company's internal control over financial reporting includes those
policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly
reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that
transactions are recorded as necessary to permit preparation of financial statements in accordance with generally
accepted accounting principles, and that receipts and expenditures of the company are being made only in
accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance
regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company's assets that
could have a material effect on the financial statements.
Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion
or improper management override of controls, material misstatements due to error or fraud may not be prevented or
detected on a timely basis. Also, projections of any evaluation of the effectiveness of the internal control over
financial reporting to future periods are subject to the risk that the controls may become inadequate because of
changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.
In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting
as of December 31, 2007, based on the criteria established in Internal Control — Integrated Framework issued by
the Committee of Sponsoring Organizations of the Treadway Commission.
We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United
States), the consolidated balance sheets as of December 31, 2007 and 2006, and the related consolidated statements
of income and comprehensive income, stockholders’ equity, and the cash flows for each of the three years in the
period ended December 31, 2007, of the Company and our report dated February 27, 2008, expressed an unqualified
opinion on those financial statements (which expresses an unqualified opinion and includes an explanatory
paragraph relating to a change in the method of accounting for uncertainty in income taxes as of January 1, 2007 and
a change in method of accounting for employee stock-based compensation as of January 1, 2006).
/s/ Deloitte & Touche LLP
Dallas, Texas
February 27, 2008