IPHONE USERS, WHO NEEDS EXCHANGE? OPEN-XCHANGE PROJECT BRINGS
BUSINESS-CLASS EMAIL AND CALENDARING TO THE IPHONE

New iPhone Web Interface Gives Users Business-class Email, Calendar and
Collaboration

TARRYTOWN, N.Y., June 6, 2008 – iPhone users waiting for business-class
email, calendaring and collaboration solutions can now use a new tool from
the Open-Xchange open source project – the new enhanced web interface for
iPhones.

Available at (http://www.open-xchange.com/iphone), the Open-Xchange tool
features a browser-based iPhone user interface. With no configuration
required, it is immediately available to all users of Open-Xchange who have
an iPhone.

This is only the first step towards support for the Apple platform.
Open-Xchange will announce soon integration tools for Apple Mac OS X iSync.
This will be available for free to all who choose to run their own copy of
Open-Xchange on their premises and will also become available to the
customers of Open-Xchange partners that sell hosted collaboration services.

Open-Xchange offers email, calendar, contacts, tasks and document sharing
to provide enterprises with all the tools needed to facilitate
communication and efficient teamwork. Users can improve their communication
and teamwork with simple, intuitive tools and advanced features, such as
smart links between calendar appointments, task lists, contacts, documents,
bookmarks and knowledge articles.

“This gives users and developers on Mac OS X and iPhone access to an
independent and freely available collaboration solution. The open source
version features a preview of the upcoming release of Open-Xchange Server,
including special capabilities for the iPhone,” said Juergen Geck, CTO of
Open-Xchange.

About Open-Xchange Inc.
Open-Xchange Inc. is the innovator of scalable and integrated open source
email and collaboration solutions for enterprises, academic institutions,
and government authorities. Open-Xchange Hosting Edition enables
web-hosting companies to provide an easy-to-use and feature-rich
application delivered as Software as a Service (SaaS). Internet service
providers (ISPs), telcos and hosting providers, led by 1&1 Internet,
deliver advanced email and groupware features through Open-Xchange Hosting
Edition to millions of users. Open-Xchange Inc. is a privately-held company
headquartered in Tarrytown, N.Y., with research, development, and
operations in Olpe and Nuremberg, Germany. For more information, please
visit (www.open-xchange.com).