Troops to Nurse Teachers Act of 2008 - Authorizes the Secretary of Defense to carry out programs under which commissioned officers of the nurse corps: (1) serve as full-time faculty of accredited schools of nursing in exchange for additional service or in exchange for scholarships provided by the school to those accepting commissions in the nurse corps; (2) receive scholarships leading to a graduate degree in nursing in exchange for service as nursing school faculty and to undertake activities to encourage nurses to serve in the Armed Forces nurse corps; (3) receive nursing faculty career placement and continuing education assistance if they are retirement-eligible and have graduate degrees qualifying them as nurse instructors; or (4) receive, while serving after retirement as faculty at a nursing school, retired pay without reduction and a pay differential to ensure that compensation for faculty member service will not be less than the basic pay received before retirement.
Requires: (1) any program established under this Act to last at least two years; and (2) the Secretary to assess each program to determine if it should be continued.