Joost, a popular Web video service is expecting that iPhone will help boosting its reputation as well as sale. Joost, one of the first services to bring the idea of watching TV shows online was eclipsed by newer sites like Hulu and Veoh last year.

The good news is that, Joost has found a great way to combat with its competitors with a free iPhone application that lets users watch their favorite TV shows from CBS, Warner Bros., Sony and Comedy Central and the best thing is that without any extra charges of a Wi-Fi connection.

Joost, CEO, Mike Volpi hopes that this plan will encourage folks to take a second look at this cool web service provider.