Do you often use the Maps application when traveling by foot or by car? If so, the Speed ??for Maps tweak could be interesting since it will offer you to find the speed of your integrated displacement directly within the application.
Once installed, the application will offer you to find your travel speed, whether in miles, km / h or meters / second, while using Google Maps. Please note, however, Maps requires a data connection to be used since the application downloads map data as you travel.
Speed ??for Maps is free to download from Cydia. Yes, it only works on an iPhone jailbreak!
Discuss on the forum.
(Via Funky Space Monkey )