NEW YORK (

TheStreet

) -

Apple

(AAPL) - Get Report

will unveil its next generation Mac operating system, Lion, and its new iOS mobile operating system at its Worldwide Developers' Conference next Monday, the company said.

Shares of Apple rose 1% in pre-market trading on Monday.

Samsung

will release new tablet devices using

Google's

(GOOG) - Get Report

Android operating system, the company told the

Wall Street Journal

. Until now, the electronics giant has relied on its own mobile phone software, Bada, which competes with Android.

Twitter

will reportedly unveil its own photo sharing service this week, according to reports. Currently, Twitter users who want to share photos through the microblogging site must do so using third-party applications like Twitpic and Yfrog.

Airbnb

, which lets people provide accommodations to travelers, is raising $100 million at a $1 billion valuation, according to

TechCrunch

. Investors include Andreessen Horowitz and Russian investment group Digital Sky Technologies, the report said.

Facebook

is close to reaching 700 million members, according to Socialbakers, which tracks Facebook statistics. The top growing countries in the last month include Brazil, Indonesia, the Philippines, Mexico and Argentina.

--Written by Olivia Oran in New York.

>To follow the writer on Twitter, go to

http://twitter.com/Ozoran

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