Media microblogging site Zannel has introduced a new iPhone app, CityWatch (App Store link), that lets you view and post location-based messages and media. 

Zannel describes itself as “the microblogging platform built from the ground up for visual bloggers.”

Features:

• See Flickr and Zannel updates for any location on the US or Canada on the map
• Post geo-tagged photos and text updates to Zannel
• Comment on updates to chat with people nearby
• Set up text alerts for real-time conversation
• Automatically export your posts to Flickr and Twitter

Video demos for the iPhone version of Zannel are available at the company’s site. 

Zannel for the iPhone is a free app. 

via Cnet