Flipboard, Palo Alto, Calif.

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Flipboard, Palo Alto, Calif.

Flipboard is a purpose-designed magazine interface for social networks on iPads. It takes entries from networks such as YouTube, Facebook, Friendfeed, Twitter—basically any site the user wants—and mashes them up into a fun-to-use, digital-page-turning app for iPads. Versions for other tablets are said to be on the way.

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Foursquare, New York

Foursquare is a location-based mobile platform that makes cities easier to navigate and more interesting to explore. By "checking in via a smartphone app or SMS, users share their location with friends while collecting points and virtual badges. Foursquare guides real-world experiences by allowing users to bookmark information about venues that they want to visit and surfacing relevant suggestions about nearby venues.

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Rhomobile, San Jose, Calif.

Rhomobile is an open-source mobile app framework designed for fast and easy cross-platform mobile app development. Developers can create native apps for all smartphones.

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Square, San Francisco

Square enables businesses to accept credit card payments anywhere with an iPhone, iPad or Android phone.

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Apsalar, San Francisco

Apsalar helps mobile app publishers increase revenue on a per-user basis. Want to deliver personalized digital recommendations to your users? ApTimizer is a simple, robust way to deliver optimized and relevant recommendations and experiences to your users - without having to engage costly IT effort.

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BoxTone, Columbia, Md.

BoxTone empowers the mobile workforce to stay connected to corporate resources by securing, managing and supporting any mobile device and any mobile application on any mobile platform. It is unified mobile management platform, powered by patented real-time automation technology, which addresses the entire mobile lifecycle.

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Lookout, San Francisco

Lookout provides the ability to back up and restore your data; security to protect mobile device users from viruses, malware and spyware; and tools to help locate lost or stolen phones.

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HomePipe, Seattle

HomePipes free online service streamlines user's ability to securely access and share any size digital files. This includes sharing high resolution photos, streaming music libraries, watching videos, editing presentations and collaborating on documents stored on a home or work computer from any Web browser or mobile device. It eliminates the need to spend extra money on storage, multiple hours uploading, organizing or synchronizing files in the cloud.

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Toktumi, San Francisco

Line2 gives mobile phone users a second line on the same iOS or Android phone. It can place and receive calls over WiFi, Cellular Data and Cellular Voice networks using the same number, which the company describes as an "industry first."

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Yobongo, San Francisco

Location-aware Yobongo enables mobile phone users to connect with people in the immediate area with a real-time "group texting" chat service.

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