Hi Jan,
I think TruTrack use something similar in their turn co-ordinator and ADI. I've used the turn co-ordinator for a few years now and it works well, being more reliable and taking less power than the previous electric gyro version.
The ADI is a full attitude indicator and heading (actually track) sensor. Not exactly cheap, but might solve a collection of problems if panel space is limited.
TruTrack ADI
Safe Flying,
Richard W.