Plugins
GDAL plugin - a plugin which provides access to GDAL libraries for other plugins.
Custom
map plugin - a plugin which will allow use of custom maps in
SportTracks. Maps can be with geographic data or just common image
formats. Still in development. Hope to have a beta version out soon (June 2008)
Other
In the initial state of development of the map plugin I implemented an algorithm for converting Swedish projection RT90 to and from WGS84 published by Lantmäteriet. I have found out that this is something many like to able to do so here are a small tool which can to the convert.
CoordTransform.zip (if you want the source code, find me in this thread
On Lantmäteriets web-site there also exist an on-line conversion tools between multiple projections used in Sweden.