I'd be interested in a "better" USB TPMS.
I have the current implementation of the same. No offense but I consider the existing one more of a fancy add-on than something which is highly reliable and dependable. Also I'm not really sure whether it is fast enough for critical alerts. Though I have 5 sensors, I was never successful in pairing all 5 of them. For odd reasons, it always stopped pairing at 4 irrespective of the sequence.
Also since TPMS and parking systems would be in demand by most, why not integrate the TPMS and Parking Alert system into one unit. I'm sure a single microcontroller can handle both the jobs merrily.
EDIT: By current implementation, I meant, the TPMS system based on 3rd Eye kit, customized for USB use by RobbyBMW & later integrated into a single PCB by MediaPortal (Alok).