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Check out new mobile apps: Watch the Under the Radar live stream

Live from Mountain View, Calif.: 26 new mobile apps and services.

Natali Del Conte and I will be moderating some sessions at the Under the Radar: Mobility event today on new mobile app companies. You can watch the event live on this post (after the jump), or at the event organizer's own site. Or check out our livestream below for ongoing team updates from the pitch sessions.

Of the 26 new companies presenting at the show, I like almost all of them. It's a really good selection. But, as always, there are a few companies in the group that I find especially interesting. These are the five outfits I'm most interested in learning more about:

DialPlus: When you make a phone call, it retrieves information about the person you're calling from the Web (including social networks) and displays it on your screen.

iVisit: A push-to-talk video phone that works across mobile devices and standard computers.

My6sense: Takes in your social feeds, ranks them for you, and displays what it thinks will be the most relevant information from your social network on your smartphone's screen.

Nextivity: Extends cellular coverage to inside the home. Several companies are trying to win the dominant share in this market. It's more important than ever as consumers continue to dump their landlines.

Smule: This company makes dopey iPhone apps, like the Sonic Lighter, but is also developing apps that leverage its audio technology, which allows iPhones next to each other to communicate via audio tones. Like dolphins, perhaps.

The event runs from 9:00 a.m. Pacific time to 5:30 p.m. There will be two parallel tracks of presenters. Natali will be moderating Track 1 at 10:15 to 10:45 a.m. Companies in her group are Apisphere, MyBooo, PhoneTopp, and Soocial.

I'll be moderating two sessions in Track 1 from 1:30 p.m. to 4:30 p.m. Companies in my group: Billing Revolution, Mojiva, Toro, GotVoice, Iotum, Mobivox, Vello, 911ICE, Mob4Hire, Nextivity, and Torch Mobile.

I'll also be a judge of the one-minute Pitch Session at 1:00 p.m. and one of the co-hosts of the "Meet the Carriers" panel at 4:30.

Here's the live blog. We'll be updating it from 9:00 a.m. until 5:30 p.m.

Live video streams after the jump...

Track 1 video stream:

Track 2 video stream