TomoTherapy to Announce Third Quarter Results on Tuesday, October 30, 2007; Provides Preliminary Estimates of 2007 Third Quarter Revenue and Backlog

MADISON, Wis.--(BUSINESS WIRE)--TomoTherapy Incorporated (NASDAQ: TTPY) today announced that it will release its 2007 third quarter results on Tuesday, October 30, 2007, at 3:00 p.m. CDT. TomoTherapy will hold an investment community conference call on Tuesday, October 30, 2007, beginning at 4:00 p.m. CDT. Dr. Fred Robertson, CEO, and Steve Hathaway, CFO, will review third quarter performance and discuss the company’s strategies. To join the conference call, dial 1-800-322-2803 (international 1-617-614-4925) and enter passcode 89316029. A replay of the conference call will be available one hour after the call ends through 11:59 p.m. CDT on Thursday, November 1, 2007. To access the replay, dial 1-888-286-8010 (international 1-617-801-6888) and enter passcode 38191486.

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