UK mobile developers Coolgorilla have launched the London Travel Guide, a free travel guide specifically designed for iPods, iPhones and mobile phones.

The London Travel Guide packs over 400 pages of info, along with interactive features, onto your portable media player. The guide is designed to be regularly updated, so you can have the most up to date information about each attraction, including entrance fees, phone numbers and websites.

iPhone and mobile users can simply click on the phone number of the attraction to call them up, or use the website link to go directly through to the attraction’s site to find more information.

Coolgorilla designed the iPod version to be downloaded as a podcast via iTunes and the iPhone and mobile versions have both been optimised so visitors can access the information over the handset’s web browser.

“A recent road trip through California got me thinking about how we could improve on the traditional, paperback travel guide” said Roy Forsdick, Managing Director of Coolgorilla. “By using the content rich features available on iPods and mobiles we can help travelers get the most out of their visit to London. Also, since software isn’t exposed to the same reproduction costs as hardcopy publications, we can distribute the guides for free!”

Coolgorilla is already working on similar travel guides for a number of other cities including Paris, Barcelona, New York, Los Angeles and San Francisco, due to be released later this year.

The company plans to make money from the travel guides through advertising deals.