Check this out:
https://market.android.com/details?id=c ... rackmasterWith this 10Hz Bluetooth GPS module:
http://www.amazon.com/BT-Q818XT-Qstarz- ... B003YCZINALooks like a pretty killer combination, although I haven't actually bought the app yet. Some cool features include split times, theoretical best lap time calculation, exporting to their online searchable database, pulling track configurations (start/finish, sector points) from said database, and REAL-TIME streaming of your laps (!) to their website, facebook, or twitter (assuming your phone isn't melting using bluetooth, accelerometers, writing to the SD card, AND uploading all this data over its data connection) so people can watch your laps live over the internet.
By the way, those wishing they had an iPhone should know there are a multitude of similar apps for Android as well, including the excellent Torque app which does OBDII sensor reading, code pulling/clearing, data logging, and plus it has support for a plugin system and there are numerous plugins available in the Market.
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2015-2017 President
2014 Track VP
2013 Autox VP
2002 Subaru WRX [dd]
2002 Honda S2000 STR #3 (retired...for now)
1992 Acura Integra ChumpCar #118 (retired)
2004 Toyota 4Runner V8http://beastmoderacing.com