Finally it is here, it is still BETA but it doesnt matter.
It used to be best phone laptimer that I know, so high hopes on this one. Go on and treat yourself, it's free.
RaceChrono™ is a GPS based lap timing software for smart phones. It can be used for almost all types of racing and outdoor sport. RaceChrono has rich lap analyzing features suited especially for motor sports, making it a great alternative to traditional car, karting and motorcycle lap timers.
RaceChrono has following major features:
• Laptimer for circuit and point-to-point tracks
• Analyzing mode with satellite imagery and smooth scrolling configurable graphs
• Lap list with optimal lap time calculation
• Library of over 300 pre-made racing circuits
• Track editor for creating your own track maps
• Virtually unlimited amount of saved sessions
• Virtually unlimited session length
• Bluetooth GPS support (for superior accuracy over internal GPS)
• Internal GPS support