Sunnyvale, Calif. ­ May 16, 2001 - MontaVista Software Inc., the company
powering the embedded revolution, today announced that STMicroelectronics
has designated MontaVista, provider of Hard Hat� Linux® for embedded
applications, as the first and preferred supplier of Linux for its
system-on-a-chip (SoC) solutions for consumer electronics and other markets.

MontaVista and STMicroelectronics will launch their alliance by
collaborating on the development of Hard Hat Linux for ST40-based digital
consumer platforms. The ST40 is a family of SoC products based on the
SuperH, 32-bit SH-4 core.

The two companies are providing mutual early access to each other¹s internal
development work. Moreover, MontaVista will offer Hard Hat Linux technical
training and support to STMicroelectronics¹ customers.  MontaVista will
collaborate with STMicroelectronics to ensure that application stacks for
Digital TV integrate seamlessly with current and future releases of Hard Hat
Linux. MontaVista will also pursue joint sales and marketing activities with
STMicroelectronics.

³ST sees an increasing demand for Linux for consumer applications, so we are
delighted that MontaVista will be offering their embedded Linux products and
services for our advanced consumer reference platforms², said Jean-Yves
Larignon, general manager of ST¹s Micro Core and Development Tools Division.

MontaVista Hard Hat Linux is already the preferred embedded platform for
more than 125 designs in communications infrastructure and consumer
products, including central office equipment, Internet appliances and
set-top box designs.

"Consumer electronics companies and developers of other embedded computing
applications are increasingly looking to Linux as the shortest path to
market," affirmed Sheila Baker, vice president marketing, at MontaVista
Software. ³STMicroelectronics¹ choice of Linux and of MontaVista is a
validation both of our vision and of our business model.²

Availability
Hard Hat Linux 2.0 Professional Edition is available direct from MontaVista
and MontaVista distribution channels worldwide as a product subscription,
providing the MontaVista Hard Hat Linux kernel, utilities, development tools
and one year of technical support. It is open source, royalty-free, and
built from 100% pure Linux sources.

Also available for Hard Hat Linux 2.0 Professional Edition are expanded
add-on capabilities, including packages for embedded Java,
High-Availability, legacy RTOS porting and emulation, and embedded GUI
development.

MontaVista will also make available Hard Hat Linux 2.0 Journeyman Edition
freely available for technical evaluation and other uses.  A subset of Hard
Hat Linux Professional Edition, it targets a sampling from all Hard Hat
Linux CPU architectures and hosts on Red Hat Linux. It can be downloaded
from MontaVista¹s Web site or obtained on CD-ROM for a nominal charge.

Hard Hat Linux 2.0 Professional Edition will be available in May 2001, and
will be joined by additional functionality and add-on technologies via
on-line distribution and on CD-ROM.


About MontaVista Software Inc.
MontaVista Software Inc. is a leading provider of open-source systems
software solutions for embedded developers. Founded in 1999 by real-time
operating system pioneer James Ready, MontaVista's principal offerings are
the cross development tools and operating system tailored for embedded
developers. MontaVista products include Hard HatTM Linux®, a Linux-based
embedded source and binary distribution, development platform and tool kits
for x86/IA-32, PowerPC, StrongARM, MIPS, SH, ARM and other microprocessor
architectures. MontaVista offers developers a family of products and
services for embedded design targeted for applications ranging from
communications infrastructure to thin-client and edge applications.
MontaVista Software also makes available valuable technology add-on packages
that address specific customer requirements such as the Java Development
environment, High Availability technology, Legacy RTOS porting tools, GUI
toolkit and more.

Headquartered in the heart of Silicon Valley in Sunnyvale, Calif.,
MontaVista Software is a privately held company funded by leading investors
such Alloy Ventures, US Venture Partners, RRE Ventures, WR Hambrecht + Co.,
and Intel Capital. For more information about MontaVista, please visit
http://www.mvista.com  or call (408) 328-9200.

Linux is a registered trademark of Linus Torvalds. Hard Hat is a trademark
of MontaVista Software Inc. All other names mentioned are trademarks,
registered trademarks or service marks of their respective companies.


Contacts:

Joe Samagond
Director of Marketing and Corporate Communications
MontaVista Software Inc.
Phone (408) 328-9234
E-mail: jsamagond@mvista.com

Patricia Colby
PR Strategy and Business Development
Pacifico Inc. 
Phone (408) 293-8600 ext. 340
E-mail: pcolby@pacifico.com