I'm really pleased to announce release V0.94 of the GPS Logger MG for Spark Fun
GPS Datalogger V1.0 (Trimble Lassen iQ) and V2.4 (US GlobalSat EM-406).

This release includes the following highlights:

- firmware now supports the Spark Fun GPS Datalogger V2.4 (EM-406) as well as the
  original V1.0 (Lassen iQ).

- emulator now provided for Linux 2.6 as well as FreeBSD 6 systems, and now works
  with either raw FAT images or standard file system I/O.

- compressed output, both generic LZARI based and specific CSV binary encoding,
  implemented to substantially reduce card writes and sizes thus improve power
  efficiency. code for two standalone decompression tools (perl & 'C') provided.
  performance against large sample sets fully evaluated and documented.
  
- provided a new 'passthrough' serial mode, for real-time direct GPS output to
  other devices, e.g. a PC. verified compatibility testing with numerous PC based
  applications (e.g. Microsoft AutoRoute 2007, Google Earth, NetStumbler, etc).

- various under-the-cover power, performance and feature improvements, e.g. data
  structures optimised to reduce RAM footprint, brown-out shutdown triggering, 
  input data robustness (both GPS & config), lazy FAT cluster map updates, uart
  IRQ handling, timer delta-queue implementation, etc. code profiling also used.

- improved test coverage, with more built-in unit-test cases, greater splint and
  compiler verification (under both FreeBSD and Linux), and evaluation against 
  large sample sets.

The complete details, with other features and changes not listed here, about the
release, its installation and its use, can be found in the userguide.

The package and userguide are available for download from the project blog at
http://gpslogger.blogspot.com.

This is V0.94 release. If any issues need to be rectified, then I plan to make
an intermediate V0.95 release within a few weeks. Timely feedback would help!

The roadmap from there is to aim for a V0.96 release to focus on restructuring
and improving the GPS data processing pipeline, with the capability to directly
configure the GPS module for use. Following this, a V0.98 will focus on power
and performance optimisation.