Quoting from the Intel official announcement:
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New in this product is Intel Trusted Execution Technology (Intel TXT, formerly codenamed LaGrande). Intel TXT protects data within virtualized computing environments, an important feature as IT managers are considering the adoption of new virtualization-enabled computer uses. Used in conjunction with a new generation of the company’s virtualization technology – Intel Virtualization Technology for Directed I/O – Intel TXT ensures that virtual machine monitors are less vulnerable to attacks that cannot be detected by today’s conventional software-security solutions. By isolating assigned memory through this hardware-based protection, it keeps data in each virtual partition protected from unauthorized access from software in another partition.
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Businesses can also enjoy energy-efficient performance, PC security and manageability along with wireless mobility on notebook PCs with Intel® Centrino® Pro processor technology which started shipping in May…