sorry for my English because I'm French.
I use 2 years on my HTC tytn2 racechrono with a bluetooth GPS receiver 5Hz. no worries.
recently, I bought a OBD2 reader bleetooth.
when I look at the RPM in "Livetime> toggle" I see them in real time.
but after 5 seconds, it freezes.
I tried it on my HTC HD2 and did the same.
even with the version "WIDCOMM".
it is the solution?