Longitude 2.0 will be released within the next week, and will feature a completely new interface with Latitude friends support. Imagine Google’s Latitude webapp, enhanced, and native – so much much faster.  2.0 will also feature the ability to use the iPhone’s significant location update API, combined with some time-related settings, so you can update only when you move, which greatly enhances battery life!

Longitude 2.0 will be a free upgrade for users who purchased Longitude since the release of iOS 4 (June 21, 2010), and a $0.99 upgrade for all other existing users.