Unwired Planet, Inc. (Formerly Openwave Systems Inc.) Announces Third Quarter Fiscal 2012 Financial Results Conference Call

Unwired Planet, Inc. (formerly Openwave Systems Inc.) (Nasdaq: OPWV), today announced the following event:

    Mike Mulica, chief executive officer, and Anne Brennan, chief financial officer, Unwired Planet, Inc.

Third quarter fiscal 2012 financial results conference call

Tuesday, May 8, 2012 at 2:00 p.m. PT, 5:00 p.m. ET

Interested parties may access the conference call over the Internet through the company’s website

at www.openwave.com or by telephone at (877) 941-4774 or (480) 629-9760 (international). A replay
of the conference call will be available for two weeks (until May 24), beginning at 5:00 p.m. PT on
May 8 by calling (800) 406-7325. The replay can be accessed internationally by calling (303) 590-3030,
access code: 4532657 #.
A live webcast of the call, together with supplemental financial information, will also be available

on the Earnings & Metrics section of Openwave’s website at http://investor.openwave.com. A replay will
be available on the website for at least three months.

About Unwired Planet

Unwired Planet (NASDAQ: OPWV) is the inventor of the mobile internet. Unwired Planet established many of the foundational patents that allow mobile devices to connect to the Internet. Over the years, the company has amassed a patent portfolio of approximately 200 issued US and foreign patents and approximately 75 pending applications, many of which are considered foundational to mobile communications, and span smart devices, cloud technologies and unified messaging. Unwired Planet is headquartered in Silicon Valley, California.

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