We ran in to Subatomic Studios back at the Penny Arcade Expo in September, and part of my chat with them included the mention of the new levels in the PSP version of Fieldrunners [App Store] eventually making their way to the App Store. These new maps are coming next month when the game is relaunched as the first member of OpenFeint's gold game program. Fieldrunners: Gold Edition will have an in-game store where these new maps will be sold as downloadable content, as well as being the first game to include OpenFeint 2.4 which will boast a number of new features including an in-game instant messaging service. Note, the "Gold Edition" will be a free update to current owners of Fieldrunners.
Similar to our monthly game ratings, the OpenFeint Gold program aims to pick out games which are not only of the highest quality, but also make excellent use of the OpenFeint service. They seem to be setting the bar fairly high in nominating Fieldrunners as the first game to get their gold rating, and it should be interesting to see what games they choose in the future.
Here are two screenshots of the upcoming levels, Frostbite and Skyway:
Each will feature new towers, new enemy units, and will require new strategies.
Fieldrunners was among the first of the highly successful tower defense games for the iPhone, and it's always nice to see original App Store classics like this still getting attention from their developers.
App Store Link: Fieldrunners, $2.99