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Signature Devices Expands Intellectual Property Portfolio

Wednesday, August 01, 2007

Redwood City -- Signature Devices, Inc. (PINKSHEETS: SDVI) today announced that they have filed for a patent for an innovative technology that extends the range of wireless technology. The new technology will be used in a new joint venture between Signature Devices, Inc. and Freespace Wireless, Inc. in providing wireless Internet service or Metro-WiFi. The estimated market size is $3.0 billion for 2007 with 4.9 million U.S. subscribers.

Previously the technology was patent pending and has now moved forward with the application for a full patent. More information on RangeBox can be obtained on the website at

"Signature Devices acquired the full rights and filed a patent pending to a very unique and exciting technology in 2006," Kenneth Hurley, Signature Devices' CEO, commented. "The technology codenamed 'RangeBox' is unique because it allows for extending the wireless range, thereby reducing the number of access points needed for wireless networks. It also helps reduce the interference from other sources so that there is an increase in performance."

About Signature Devices, Inc. and Graffiti Entertainment LLC:

Based in Redwood City, Calif., Signature Devices, Inc. ( (PINKSHEETS: SDVI) creates, develops and manufactures advanced information technology, including computer systems, software and electronics products. One of the company's premiere technologies includes a blend of hardware and software for Image generation technology used in video games and simulations.

Forward-Looking Statements:

The information in this press release includes certain "forward-looking" statements within the meaning of the Safe Harbor provisions of Federal Securities Laws. Investors are cautioned that such statements are based upon assumptions that in the future may prove not to have been accurate and are subject to significant risks and uncertainties, including the future financial performance of the Company. Although the Company believes that the expectations reflected in its forward-looking statements are reasonable, it can give no assurance that such expectations or any of its forward-looking statements will prove to be correct. Readers are cautioned not to place undue reliance on these forward-looking statements that speak only as of the date of this release, and the Company undertakes no obligation to update publicly any forward-looking statements to reflect new information, events, or circumstances after the date of this release except as required by law.

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