New patch 2.70a  pre-release version is available for download.

Chanes and new features:

Fixed issue: OSD randomly  blinks in negative all GPS fields.
Fixed bug: OSD did not permanently store  0km/h takeoff speed value.
Fixed bug: OSD did not permanently store acceleration speed less than 0.4g

Ground Station: Added support for direct mavlink USART telemetry input.  Now GS can display telemetry data in mavlink format, log these data on SD card and control tracking antenna  based on mavlink data. This allows to use GroundStation with 3-rd party system (FS/OSD) equipped with mavlink telemetry downlink.