I've been using logworks mobile on my Iphone, although for full functionality you'll need an Innovate Motorsports OT-2 data interface (plugs into OBDII). iPhone connects via wireless & can monitor/record anything that your ECU is reading, also has USB2 so you can connect you laptop with full version of logworks.
On previous car also allowed me using romraider etc. to backup and reload different maps into the ECU and had a wideband permanently hooked into exhaust which connected to the OT-2 as well.
Going to be trying it out this weekend see what it can monitor on the RS197