LinkedIn rolls out HTML5 app as mobile use grows 400% year-over-year

Professional networking platform LinkedIn is launching redesigned versions of its mobile applications for Apple's (NASDAQ:AAPL) iOS and Google's (NASDAQ:GOOG) Android, concurrently introducing a new HTML5-based web app optimized for all current mobile browsers.

According to LinkedIn, the revamped app touts improved speeds across all features, including search and update streams. The app also reorganizes content into four key areas: Updates (including new developments within the user's network as well as LinkedIn Today alerts), Inbox (which combines all invitations and messages in one place), You (the user's profile, connections and information sharing tools) and Groups & More (browsing and interaction solutions as well as the People You May Know feature). Based on user feedback, LinkedIn Mobile now starts with the Update stream and adds access to millions of LinkedIn Groups discussions.

LinkedIn states that mobile usage has increased 400 percent over the last year. Mobile is now LinkedIn's fastest-growing consumer service.

The LinkedIn network spans more than 120 million professionals across 200 countries, including executives from all current Fortune 500 companies. LinkedIn went public in mid-May, with shares rising as much as 171 percent in their first day of trading on the New York Stock Exchange before closing at $94.25, more than 109 percent above the $45 IPO price.

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