I was up in New York City over the weekend and got to see my favorite dosa vendor. Thiru Kumar runs NY Dosas, a dosa cart in Washington Square Park. It has good, cheap eats. ($5 for lunch in NYC.)

He’s usually there Monday-Saturday, 11 a.m. – 4 p.m. But it can be hit or miss because of rain, special catering events, etc. The last few times I’ve been to New York, I’ve missed him.

I’ve got Thiru on my speed dial. When I’m in NY and craving a dosa, I give him a call to see if he’s open.

This would be a perfect application for Twitter. Thiru could update his status when he arrives and leaves, no Web site necessary. Just text his state to his Twitter page.

Here’s an interview with Thiru. His cart is also being featured on Rachel Ray’s Tasty Travels.

Street food also seems like a great application for location services like WHERE. Take a map like this street food map of New York from Platial and make it accessible from cell phones.